Because 540 is a multiple of 9.
It is.
Yes, just do:540 / 2 = 270
All multiples of 540, which is an infinite number.
Yes. 540 divided by 4 is 135.
Yes.
Yes and it is 90
Yes, by 60.
Yes.
540/4=135 540/10=54
Yes: 2,160 ÷ 4 = 540
Yes - 1620/3 = 540