This is one of those morale building repair jobs. Hugely important thing to fix, but simple to do. Unscrewed the plate on the broken element with a philips screwdriver and gently pulled the base out of the hole. Pushed away the insulation and pulled the element a bit to expose the wires' terminals. Gently wiggled the wire terminals off the broken element, being careful to not lose wires down the hole. Gently wiggled the wire terminals onto the new element. Slid the wires/element back into place. Put screws into new plate. Test ran oven, worked fine. Smokey at first, then it was fine.