How to effectively clean an eletric oven

 I am not sure if this is the forum to put this question.  I have always had gas ranges in the past.  Now that I am living in Florida, everything is electric. I can't seem to clean my electric stove / oven very well.  I would like to ask if anyone knows of something that would clean the baked on stuff on the bottom of my oven.  Also, I was told to not remove the heating element.  Is there an easy way to clean it?