Eh, it didn't really work for me at all. I went to my cell, entered the commands and got the coordinates, divided them by 4096 and rounded down, and ended up nowhere near where I wanted. I don't get it =(
I was also under the impression that the /4096 technique worked, but you can use this technique instead:
In-game, open the console and click an obvious reference (a large static, etc.), write down the 8-digit ReferenceID. Quit.
In the Creation Kit, use Edit > Find Text and search for the ID. The reference should appear in the "Objects, etc." tab and from there you can open the cell where that reference is located.