Mtd 16.5 drive belt replacement how do I put on a new one ?

This belt was broken, on my mtd 16.5 riding mower,you take out the battery and the plate under it you will see a pulley ,I put a screw drive in the hole to hold it in place , you use a 7/8 socket and turn it count clock wise to get the nut off and then the pulley will lift, I then put the new belt on both pulleys and use a short 2/4 to push the larger pulley back in place . Total time was about 1 hour.