21 cannot go into 12 at all, as 21 is greater than 12. Therefore, the answer is zero times. If you were to divide 12 by 21, the result would be a fraction less than one.
12. 252 / 21
Exactly 12 times
It goes: 256/21 = 12 times with a remainder of 4
1
7 goes into 84 12 times.
10 x 21 = 210 with a remainder of 12
It would be 6 think about it
10 with remainder one.
It goes into it 9 times
110/12 = 9.16 recurring (that is, 9.16666...)
21 times with a remainder of 7
It goes: 1008/21 = 48 times