Let's get this math done. We have 417 and we're going to multiply it by 10. This is the same as taking 417 and adding it to itself 10 times.
Step 1: 0 + 417 = 417
Step 2: 417 + 417 = 834
Step 3: 834 + 417 = 1251
Step 4: 1251 + 417 = 1668
Step 5: 1668 + 417 = 2085
Step 6: 2085 + 417 = 2502
Step 7: 2502 + 417 = 2919
Step 8: 2919 + 417 = 3336
Step 9: 3336 + 417 = 3753
Step 10: 3753 + 417 = 4170

So, 417*10 = 4170