90 times.
6, R12
90 ÷ 21 = 4 with remainder 6 or 4.2857
7 times with a remainder of 6
6 times with a remainder of 32
6 times, with remainder 6.
how many times can 5 go into 450
6 goes into 90 15 times
6 goes into 90 exactly 15 times.
90 divided by 15 = 6
7 remainder 6
15 times
6 times with a remainder of 72
6, R12
12 times, with 6 remainder.
7 times with a remainder of 6
15 times. (6 times 15 =90)