If you have a large bone-in bellly remove the ribs (eat them, don't chuck them!) and skin the belly.
Consider cutting the belly up into manageable pieces. I prefer to do lumps that fit into a gallon sizes ziplock bag. This also has the benefit that you can remove from the cure one batch at a time as you need them.
Mix all the ingredients together to make the cure and coat the meat. Carefully drop the meat into a bag, or even more carefully wrap it in lots and lots of clingfilm (it's going to leak, so wrap it one way, then the other at least 2 or 3 times)
Pop it in the fridge and turn every day for a fortnight - your belly is now bacon! (If you used clingfilm instead of ziplocks put it in something like a big roasting dish for example, otherwise you'll be cleaning your fridge a week from now)
Wash off the cure under a cold tap and pat dry - now you need to find somewhere to keep it for another 2+ weeks!