If you mean a double wide mobile home, no. Most people don't own the land that a mobile home sits on and the way the mobile home is made doesn't lend it's self to having a basement.
Some women's shoes come in double wide, others do not. Certain brands carry this more often than others, and it may be easier to find double wide shoes in an athletic shoe as opposed to in a dress...
if you want to double something straight away you can add the numbers 2 times and it would be easyer if you add them in coulems. This is an exsample : double 397 you first double the numbers by...