945 divided by 21 is equal to 45. This can be calculated by performing long division, where 945 is the dividend and 21 is the divisor. By dividing 945 by 21, you will get a quotient of 45 with no remainder.
Well, honey, 945 divided by 21 is 45. You could sit there and do the long division dance, but why waste your time when I can just give you the answer straight up? Math doesn't have to be a drag, darling.