Using a razor knife, cut the vinyl into long strips. Try for strips about one- to two-feet wide. Once in strips, just pull off the vinyl until all that’s left on the floor is the paper layer. Soak the paper with hot, soapy water and scrape it up using an industrial-strength floor scraper with a replaceable surgical steel blade. After you have removed as much of the paper as possible, use a product called “Kleen Strip”, a vinyl adhesive remover, on what’s left. Make sure to have plenty of ventilation while using Kleen Strip, and wear rubber gloves, boots, and safety glasses. Placing a sheet of plastic over the wet floor will reduce evaporation and allow the stripper to do its job. You should then be able to use the floor scraper to remove the remaining softened residue.