Alright, let's solve this math problem step by step. First, we have the number 906. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 45. So, we're going to take the number 906 and add it to itself 45 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
Step 17: 14496 + 906 = 15402
Step 18: 15402 + 906 = 16308
Step 19: 16308 + 906 = 17214
Step 20: 17214 + 906 = 18120
Step 21: 18120 + 906 = 19026
Step 22: 19026 + 906 = 19932
Step 23: 19932 + 906 = 20838
Step 24: 20838 + 906 = 21744
Step 25: 21744 + 906 = 22650
Step 26: 22650 + 906 = 23556
Step 27: 23556 + 906 = 24462
Step 28: 24462 + 906 = 25368
Step 29: 25368 + 906 = 26274
Step 30: 26274 + 906 = 27180
Step 31: 27180 + 906 = 28086
Step 32: 28086 + 906 = 28992
Step 33: 28992 + 906 = 29898
Step 34: 29898 + 906 = 30804
Step 35: 30804 + 906 = 31710
Step 36: 31710 + 906 = 32616
Step 37: 32616 + 906 = 33522
Step 38: 33522 + 906 = 34428
Step 39: 34428 + 906 = 35334
Step 40: 35334 + 906 = 36240
Step 41: 36240 + 906 = 37146
Step 42: 37146 + 906 = 38052
Step 43: 38052 + 906 = 38958
Step 44: 38958 + 906 = 39864
Step 45: 39864 + 906 = 40770

So, 906*45 = 40770