11 with 1 remaining
100 - 1 = 99 = 9 x 11
Eleven.
20
Five 9s:(99 x 9 + 9) / 9 = 100
11
10 times
There are: 495/9 = 55
90 / 9 = 10
6 of them with a remainder of 4
9 of them.
70 x 9 = 630
3 times with a remainder of 5
33 divided by 9 equals 3 with a remainder of 6