How do i develop pictures from my digital camera in the store walgreens, etc.?

do i just bring the memory card and put in the pic machine

yes or with most places now you can do it online, just follow the directions for 1 hour pick up.

You are not developing the images. That is done when you shoot film

I think what you want to do is have prints made of the images you shot with your digital camera. Just take the memory card to any lab or one-hour photo place and you will be done.