40/9 = 4 4/9 times. That is, 4 times with 4 left over.
5 times
5
444
40*9 = 360, so 9 times with a remainder of 6
4 times with a remainder of 4.
13, remainder 1
40
twice 40 goes into 80 twice so it goes into 90 twice with 10 left over.
40 times
exactly 40 times
40 times.
It goes 40 times.