Washing Machine Leaks From Front Tab Seal

I have a whirlpool washing machine model no. GHW9150PW1, the front tab seal was ripped in to places which causes the leak. water just gushed out of it. Now I order the parts from your store, I need a step by step do-it-yourself instruction on how to remove and replace the seal. If you can help me, I sure appreciate it very much. - thanks