OK, let's work through this together. We're starting with 906 and we're going to multiply it by 16, which means we add 906 to itself 16 times.
Step 1: 0 + 906 = 906
Step 2: 906 + 906 = 1812
Step 3: 1812 + 906 = 2718
Step 4: 2718 + 906 = 3624
Step 5: 3624 + 906 = 4530
Step 6: 4530 + 906 = 5436
Step 7: 5436 + 906 = 6342
Step 8: 6342 + 906 = 7248
Step 9: 7248 + 906 = 8154
Step 10: 8154 + 906 = 9060
Step 11: 9060 + 906 = 9966
Step 12: 9966 + 906 = 10872
Step 13: 10872 + 906 = 11778
Step 14: 11778 + 906 = 12684
Step 15: 12684 + 906 = 13590
Step 16: 13590 + 906 = 14496

So, 906*16 = 14496