OK, let's crack this. We're given 415 and our task is to multiply it by 6. Essentially, we'll be adding 415 to itself 6 times.
Step 1: 0 + 415 = 415
Step 2: 415 + 415 = 830
Step 3: 830 + 415 = 1245
Step 4: 1245 + 415 = 1660
Step 5: 1660 + 415 = 2075
Step 6: 2075 + 415 = 2490

So, 415*6 = 2490