Turn off the circuit breaker to the oven's outlet.
Remove the baking racks from the oven, and set them off to the side.
Remove any brackets holding the heating element in place if necessary. Unscrew the rear two screws which hold the element in place. Set the screws off to the side with the baking racks and any other brackets you have removed.
Gently tug on the heating element until the element pulls loose of it's plug. Shine your flashlight on the plug, and observe the two wires connected to the element once it has been pulled free.
Using the proper screwdriver, remove the screws holding the wires, and finish removing the heating element from the oven completely.
Place the new heating element into the oven, screw in the wires in the back and gently push the wires back into the socket as you slowly slide the element into the socket tightly.
Reinstall any remaining brackets with their proper screws and restore power to the oven at the breaker.