If this is cast iron, which it appears to be, its really not a good idea to clean it with soapy water.
Cast iron is porous, and will absorb soap, especially if the pot is warm.
The next time you cook in it, the pores open up and it releases the soap residue into your foot.
If you’re lucky you’ll just end up with a strange taste to your meal. If you’re unlucky, the soap will put your meal in the “express lane” for digestion.
I speak as a very experienced camper and Scout leader that has cooked with cast iron for years.
To clean it, just scrape as much food out as you can. The put a few inches of water in the bottom and bring it back to a boil. Put on the lid and let it steam for a bit. Then use a (non-soapy) brush to brush the sides clean. Rinse with fresh water, then apply the cooking oil as suggested to prevent rust.
It works great, every time. No soap needed.
Never put your foot into your cauldron.