To deep clean your washing machine pour some baking soda and vinegar into the washing machine tub and then fill the washing machine fully with water and let it sit for a little while.
Letting it sit in the washing machine tub for 30 minutes is usually good enough.
Then run the washing machine through a full wash cycle and then after the wash cycle is done wipe the washing machine tub down with a lint free cloth.
The baking soda and vinegar will deep clean your washing machine tub and clean any grime off of the tub as well.