Let's get this math done. We have 917 and we're going to multiply it by 10. This is the same as taking 917 and adding it to itself 10 times.
Step 1: 0 + 917 = 917
Step 2: 917 + 917 = 1834
Step 3: 1834 + 917 = 2751
Step 4: 2751 + 917 = 3668
Step 5: 3668 + 917 = 4585
Step 6: 4585 + 917 = 5502
Step 7: 5502 + 917 = 6419
Step 8: 6419 + 917 = 7336
Step 9: 7336 + 917 = 8253
Step 10: 8253 + 917 = 9170

So, 917*10 = 9170