Alright, let's solve this math problem step by step. First, we have the number 860. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 12. So, we're going to take the number 860 and add it to itself 12 times.
Step 1: 0 + 860 = 860
Step 2: 860 + 860 = 1720
Step 3: 1720 + 860 = 2580
Step 4: 2580 + 860 = 3440
Step 5: 3440 + 860 = 4300
Step 6: 4300 + 860 = 5160
Step 7: 5160 + 860 = 6020
Step 8: 6020 + 860 = 6880
Step 9: 6880 + 860 = 7740
Step 10: 7740 + 860 = 8600
Step 11: 8600 + 860 = 9460
Step 12: 9460 + 860 = 10320

So, 860*12 = 10320