1. Remove the magazine and ensure that the gun is unloaded.
2. Pull the slide all the way back and lock it in place by moving the safety lever to "SAFE".
3. Looking at the pistol from the rear, rotate the breech block clockwise about 45°.
   
   
   
   
   
4. Squeeze the cocking lever (hammer) back and continue to rotate the breech block to 90°.
5. Pull the breechblock straight back and remove it from the slide.
6. Get a good grip on the slide.   Hold it back back, flip the safety to "FIRE", pull the trigger, and remove the slide from the frame by sliding it forward.
   
   
   
   
   
   
7. Remove the barrel.
8. Be careful when cleaning and handling the stripped frame.   The trigger, sear trip, and associated small parts are held in place essentially by gravity and are prone to falling out.

Reassembly
To put it back together, just reverse the steps above.   Here are two things to keep in mind though:

1. Squeeze the hammer (hard) as you re-insert the breech block.
2. Make sure that you re-insert the breech block the way it came out: Rotated 90° clockwise when looking at the gun from the rear.   If you put it in backwards (rotated 90° counterclockwise) it will get stuck and it's a bear to get it back out.   I'm speaking from experience here.