Let's get this math done. We have 786 and we're going to multiply it by 9. This is the same as taking 786 and adding it to itself 9 times.
Step 1: 0 + 786 = 786
Step 2: 786 + 786 = 1572
Step 3: 1572 + 786 = 2358
Step 4: 2358 + 786 = 3144
Step 5: 3144 + 786 = 3930
Step 6: 3930 + 786 = 4716
Step 7: 4716 + 786 = 5502
Step 8: 5502 + 786 = 6288
Step 9: 6288 + 786 = 7074

So, 786*9 = 7074