Replacing a drive belt on a PoulanPro

Hi everyone, I am new here. I found ya'll while searching the net trying to figure out how to put a new drive belt on my riding mower.

Everywhere I have searched does not show me a diagram..the belt broke so I have no clue how it was on beforehand...I really don't want to pay our local repair guy $60 an hour to replace this thing when I am pretty sure with some helpful advice I can do it myself.

I have a PoulanPro 300EX 42in cut 19.5hp mower, model# PB195H42LT

I already have the mowing deck off and have the new belt, I just need to know how to get it back on

Thanks in advance!

Kelly