Do you want to divide the totals, or each individual row?
If you want to divide totals, then your formula will work. make sure it has an = sign in front of it though, so excel recognizes it as a function.
To do it individually, which is usually the case when dealing with stats, do it like this:
=(D2/E2) - make sure you press enter after you put in the formula or it'll go all weird.
Then, click on the cell you put that formula in, and don't let go of the mouse. Drag it all the way to the bottom of the list of players. Now the whole column should be highlighted. Click on Edit; Fill; Down. That should do the trick.
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