The lower burner burnt in half after arcing....

remove power replace elenent, online parts bake element with model #.

Yes, elements are common and VERY easy to repair. Just be sure to un-plug the oven so you don't have to worry about shock or electrocution.

You will need the replacement part (probably less then $50) a screwdriver and or a 1/2 socket wrench.

You can order the parts locally or use a site like this (repairclinic.com) to identify and order the parts you need.