Let's get this math done. We have 483 and we're going to multiply it by 7. This is the same as taking 483 and adding it to itself 7 times.
Step 1: 0 + 483 = 483
Step 2: 483 + 483 = 966
Step 3: 966 + 483 = 1449
Step 4: 1449 + 483 = 1932
Step 5: 1932 + 483 = 2415
Step 6: 2415 + 483 = 2898
Step 7: 2898 + 483 = 3381

So, 483*7 = 3381