My name is peter. I am a retired field service appliance technician.
Good for you - turning off the breaker.
You have a older oven. Usually there is a spark or crack in the oven element. In your case the element was so embrittled it broke into 2 pieces.
Before you use the top range burners to be on the safe side you need to disconnect the oven element. You may have damaged the oven control board to where it is locked into power for the oven.
1.) Remove the bottom drawer to reduce weight.
2.) Put a rug on the floor in front of the oven, so when you pull the oven out it does not scratch the floor.
3.) Pull the oven out so you can get behind it.
4.) Unplug the unit.
5.) Remove the back bottom cover.
6.) Disconnect the heating element and remove from oven.
7.) Rap the two loose element connections in the back with electrical tape.
8.) Follow the element loose connection to the control board at the top. Disconnect at the oven control board.
9.) Inspect the loose wiring from the control board to the heating element for burns or melting.
10.) Plug the oven back in and turn on the range burners.
The part number for the oven element is WB44T10014. Sears wants about $95.00 for this part. Search the internet for this part number and get it for about $28.00.
Your oven control board may have become damaged. Recently I replace one for a friend. Sears wanted $256.00. I got a remanufactured board over the internet for $30.00.
Get back to me and let me know what is going on.