From Abbott and Costello. I get it and I know how Abbott got 13 out of 28.Abbott got 13 out of 28 because when he was dividing he thought that he couldn’t use the 2 the first time so he first said 7 into 8 equals 1. Then, he subtracted 7 from 28 and got 21. He then asked Costello how many times 7 goes into 21. The other guys said 3 right? Well that’s how he got 13 out of 28. You could also do this with the number 25.