When I was teaching photography in the 70's, we came upon a roll 7-8 inches wide. We decided, as an exercise, to start the roll under the enlarger, and move it along the counter till we got to the developer, exposing a new neg (full frame) each time we shifted the paper (the negs were preselected for similarity and subject theme). The darkroom was about 6ft x 10ft, with the trays across the short dimension from the enlarger, so the paper snaked along the intermediate counter, taking two right corner turns to get to the developer tray. By the time the first image was ready for the stop, we found out how important the timing was. We washed it manually in a bucket of running water and later mounted it in the lobby. There were 4 of us, and we switched places during the process just to mix things up. Great fun!!