Your oven manual should have specific instructions, but here are some tips if you need extra help: https://www.youtube.com/watch?v=2s8CDJizZjo
As long as it's not a self-cleaning oven, use this:
What I do is pour some ammonia into a bowl and let it set overnight in the oven with the door closed, next day in a well ventilated kitchen, remove and discard the ammonia then just wipe off your oven, it is the fumes that do the work.
You can use baking soda, vinegar and other household ingredients to clean your oven. This is a good tutorial: https://www.thekitchn.com/how-to-clean-an-oven-cleaning-lessons-from-the-kitchn-201191
I agree with Redcatcec. My preferred method is self-cleaning. Turn on the oven to self-cleaning, open a couple of windows and make sure there's nothing on top of the stove. Don't leave it unattended. There's a lock that won't open until the oven cools. After cooling, wipe out the ashes.