I think I found a good way to clean a stubborn burn off an oven floor without going through a can of Easy Off (or similar products) — and it worked without scratching my oven.
I tried Easy Off seven times over a 12-hour period, and it just wasn’t doing the trick. So I mixed a gel packet of Finish Dishwasher Detergent with about 1/2 cup of Baking Soda till it was a very thick paste — adding just enough water to make it a gooey-watery paste (not runny). Then I poured the mixture on top of the spill (it was about 5″x4″ wide and thin). Turned on the oven ’til the mixture bubbled, and then turned off the oven. When the oven cooled, I added a little more water to the paste to make it gooey again, then turned on the oven again till the mixture bubbled.
When the oven cooled enough to touch without getting burned, I used a metal pancake flipper turned upside down and gently scraped the mess up. It got the burned off goop without scratching the surface of the oven.
I imagine if the stain is “thick” you might have to do it more than once, but I had gone through several cans of Easy Off to clean my two ovens and one stain was still there. Now, it’s gone!