In theory, this shouldn't be too difficult, although I haven't tested it so it may or may not work.
1. Go to Page Setup on the File menu.
2. Turn on "Dissociate formatting page size and printer paper size". Also turn on "No Printer (optimize for screen display)"
3. Set the width of the report to twice the paper size. If you want it to be on 2 8 1/2 x 11 portrait pages, set the paper size to 17 x 11 (ledger).
4. Put fields A, B, and C to the left of the 10" mark (assuming you have .5 inch left and right margins) and fields D, E, and F to the right of the 11" mark (to start - you can tweak their location after validating that this works.)
Run your report. When you print, set the print options to print on 8 1/2 x 11 paper, no scaling. Make sure that "Fit horizontal pages to one page" is turned off.
-Dell