Without delay, let's solve this. We've got 108 and we will be multiplying it by 16, that is, adding 108 to itself 16 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

So, 108*16 = 1728