Start by unplugging the dryer.
Remove the two screws in the bottom access panel.
Lift the bottom of the panel outward to release the spring clips and panel locator's.
Remove the two screws that hold the top panel.
Lift the top panel outward to release it from the top of the dryer.
Disconnect and label the wire terminals from the door switch.
Remove the screw in the control panel and roll panel forward to release it from the top.
Disconnect and label wire.
Remove the screws securing the top to the side panels.
Raise the top and lean it against the wall.
Remove the front bulk head.
Release the belt.
Remove the drum.
You should now have access to the heating element.
Here is a link to your dryer model ale643raw. | 
Replacing dryer heating element 
