In this video a very unintelligent man is arguing with another man about the amount of donuts that each officer gets. While the unintelligent man argues that 13 goes into 28 7 times the other man is arguing that only 4 goes into 28 7 times. What the unintelligent man was doing wrong was he was using the wrong method of math. Instead of adding 13 as a whole he added the individual digits, the ones place and the tens place, so he added 1+1+1+1+1+1+1+3+3+3+3+3+3+3=28.