The part below is establishing who the iron is and who the clay is. Iron is referring to fallen angels, the very ones that had part in the sins committed in Ge:6 that brought on the flood of water. They were put into the Pit by the saints mentioned by Enoch in the book of Jude and by Moses when he referred to it as an historical event. Jude is the best definition for what a fallen angel is in a book just before a long one that references them many times. Clay is referencing mankind and 10 toes are the 10 men that are given kingdoms on the same day the Beast starts his 42 month reign.

And the fourth kingdom shall be strong as iron:
forasmuch as iron breaketh in pieces and subdueth all things:
and as iron that breaketh all these,
shall it break in pieces and bruise.
And whereas thou sawest the feet and toes,
part of potters' clay,
and part of iron,
the kingdom shall be divided;
but there shall be in it of the strength of the iron,
forasmuch as thou sawest the iron mixed with miry clay.
And as the toes of the feet were part of iron,
and part of clay,
so the kingdom shall be partly strong,
and partly broken.
And whereas thou sawest iron mixed with miry clay,
they shall mingle themselves with the seed of men:
but they shall not cleave one to another,
even as iron is not mixed with clay.
And in the days of these kings shall the God of heaven set up a kingdom,
which shall never be destroyed:
and the kingdom shall not be left to other people,
but it shall break in pieces and consume all these kingdoms,
and it shall stand for ever.
Forasmuch as thou sawest that the stone was cut out of the mountain without hands,
and that it brake in pieces the iron,
the brass,
the clay,
the silver,
and the gold;
the great God hath made known to the king what shall come to pass hereafter:
and the dream is certain,
and the interpretation thereof sure.

2/3 of the Gentiles alive on the day the 7th trump sounds will die in the few hours that follow the resurrection of the two witnesses. What is mentioned had to happen in a period of 1260 days that starts when the 5th trump sounds and end on the day the 7th trump sounds.
In the verse below the whole world surrenders to the Beast at the start of his 42 month rule. Jerusalem only comes under his control for the 4 days the witnesses are dead. The latter time below is 3 1/2 years before and Jerusalem is exempt.

And in the latter time of their kingdom,
when the transgressors are come to the full,
a king of fierce countenance,
and understanding dark sentences,
shall stand up.
And his power shall be mighty,
but not by his own power:
and he shall destroy wonderfully,
and shall prosper,
and practise,
and shall destroy the mighty and the holy people.
And through his policy also he shall cause craft to prosper in his hand;
and he shall magnify himself in his heart,
and by peace shall destroy many:
he shall also stand up against the Prince of princes;
but he shall be broken without hand.

All of that has to have a reference in Da:11 and be within the 1260 days that is what 42 months equals. The 5th trump sounding is woe one and 5 months later the 2nd woe begins and 1/3 of all people on the planet

And now will I shew thee the truth.
there shall stand up yet three kings in Persia;
and the fourth shall be far richer than they all:
and by his strength through his riches he shall stir up all against the realm of Grecia.
nd a mighty king shall stand up,
that shall rule with great dominion,
and do according to his will.
And when he shall stand up,
his kingdom shall be broken,
and shall be divided toward the four winds of heaven;
and not to his posterity,
nor according to his dominion which he ruled:
for his kingdom shall be plucked up,
even for others beside those.

The last verse from Da:11 is referencing the day the 7th trumps sounds and the 7 vials are followed by the book of life verses from Re:10.

Satan and the harlot is the king with the daughter. The two witnesses are the people that know God and can do exploits and a few other thing have been meshed but not all of it. Revelations has several chapters that would help filling in the current blanks. The image from Re:13 is the false throne and it is the abomination standing where it should not be.

When ye therefore shall see the abomination of desolation,
spoken of by Daniel the prophet,
stand in the holy place,
(whoso readeth,
let him understand

And arms shall stand on his part,
and they shall pollute the sanctuary of strength,
and shall take away the daily sacrifice,
and they shall place the abomination that maketh desolate.

Let no man deceive you by any means:
for that day shall not come,
except there come a falling away first,
and that man of sin be revealed,
the son of perdition;
Who opposeth and exalteth himself above all that is called God,
or that is worshipped;
so that he as God sitteth in the temple of God,
shewing himself that he is God.

Therefore shall her plagues come in one day,
and mourning,
and famine;
and she shall be utterly burned with fire:
for strong is the Lord God who judgeth her.

The day of the lord passages will fill in what I am leaving out at the present.