The normal way is to go to the folder where your program is, usually Applications. Drag and drop it into the Trash. Empty the Trash.
The other way is to use a program like AppZapper. It works best if it is already installed when you install the program intitially. With that program you drag the application to the open AppZapper window and it removes all traces of the program.
Normally, when you delete a program from OS X, the only thing left are very small preference files, and such in a couple of locations. These won't affect the normal operation, nor will they take up much space at all, and can be left.
Some programs come with an uninstaller program. In that case click the Uninstall icon for that program, or the uninstall command in its menu.
This is probably a very simple task, but how do you uninstall programs on Mac OS X?!? I have the Macbook, and I can't seem to figure it out.