1: FUS.
2: Run like my foes run from me. Run towards Graybeard's Monastery (aka High Hrothgar)
3: Chug Stamina Potion.
4: Run more. (Repeat steps 3 and 4 if you're not at Hrothgar)
5: Eat bread.
6: Run up steps of Hrothgar.
7: Wait for troll to run up steps.
8: Quickly turn around and go in.
9: Watch Troll get PWNED by Graybeards.
10: Eat more bread.

)
Frost troll is done *YEHHH >:DDDDDDDDDDDDDD*