Are you taking the belt on the power steering pump, A/C, or timing belt?

If Power Steer or A/C belt, you will need some  metric socket set, metric
box wrenches
Jack up car, Remove cowling near bottom of engine, next to wheel.
Power Steering hose replacement, there is a pulley that tightens the belt.
You will have to loosen the pulley and slip belt on, tighten.
AC belt replacement, loosen bolt on AC compressor, there is a bolt that is
providing tension on the belt, you will need to turn to move compressor
down, slip belt on, and tighten bolt, and other support bolts.

Recommend buying service manual.