Let's get this math done. We have 830 and we're going to multiply it by 12. This is the same as taking 830 and adding it to itself 12 times.
Step 1: 0 + 830 = 830
Step 2: 830 + 830 = 1660
Step 3: 1660 + 830 = 2490
Step 4: 2490 + 830 = 3320
Step 5: 3320 + 830 = 4150
Step 6: 4150 + 830 = 4980
Step 7: 4980 + 830 = 5810
Step 8: 5810 + 830 = 6640
Step 9: 6640 + 830 = 7470
Step 10: 7470 + 830 = 8300
Step 11: 8300 + 830 = 9130
Step 12: 9130 + 830 = 9960

So, 830*12 = 9960