I put one point of the divider (which I'll call "point A") on the intersection of one of the short lines and one of the long lines nearest the edge of the paper. With the other point ("point B", of course) on the same long line, I punched both points through the paper. I then proceeded to successively put point A in the hole made by point B and punch both through again...and again and again. The goal was to land point B directly on top of the short line at the other end of the paper from the one where I started. This can take several attempts, and THAT is why I made so many long lines.

The first "run" came up a little short of the target short line. So I adjusted the divider outward a tiny bit. The second run was still a little short. On the third run, point B speared the short line. (Success on the third run is pretty good.) I then did another run on the long line adjacent to the successful one, and marked the points alternately on each long line with little crosses.