Well, honey, 20 can only go into 31 once. It's like trying to fit into your high school jeans after Thanksgiving dinner - just not gonna happen. So, grab a calculator and do the math, because there's no way around it.
5 times is wrong
Seven times.
How many times can 10 go into 20
372/31 = 12
0.155 times
31 times.
120 times
1.9375 times.
2.4839 times.
31 times.
Seven times.