OK, let's crack this. We're given 983 and our task is to multiply it by 4. Essentially, we'll be adding 983 to itself 4 times.
Step 1: 0 + 983 = 983
Step 2: 983 + 983 = 1966
Step 3: 1966 + 983 = 2949
Step 4: 2949 + 983 = 3932

So, 983*4 = 3932