Alright, let's solve this math problem step by step. First, we have the number 108. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 18. So, we're going to take the number 108 and add it to itself 18 times.
Step 1: 0 + 108 = 108
Step 2: 108 + 108 = 216
Step 3: 216 + 108 = 324
Step 4: 324 + 108 = 432
Step 5: 432 + 108 = 540
Step 6: 540 + 108 = 648
Step 7: 648 + 108 = 756
Step 8: 756 + 108 = 864
Step 9: 864 + 108 = 972
Step 10: 972 + 108 = 1080
Step 11: 1080 + 108 = 1188
Step 12: 1188 + 108 = 1296
Step 13: 1296 + 108 = 1404
Step 14: 1404 + 108 = 1512
Step 15: 1512 + 108 = 1620
Step 16: 1620 + 108 = 1728
Step 17: 1728 + 108 = 1836
Step 18: 1836 + 108 = 1944

So, 108*18 = 1944