A quick algebra question
posted by Mary .
Larry is having dinner at a restaurant that offers 6 different main courses, 7 different side dishes, 4 different drinks, and 4 different desserts. For dinner, Larry will choose a main course, a side dish, a drink, and a dessert.
From how many different combinations can Larry choose dinner?
I need to know a quick and easy way to solve this. Thank you!

6 * 7 * 4 * 4 = ?