[Suicide Junkie]

The frat guys have odd numbers, implying integers. Same as door numbers. There is no problem.
Now, if the frat had used points on a line instead of jersey numbers, then there would be a problem, but they didn't. Fractions would have been fine too.

The whole point of that was to demonstrate stretching an infinite amount of something.
All those people who were neighbours before the move, now have one frat guy between them and are two doors away from their old neighbour. And everybody does fit.