Let's get this math done. We have 814 and we're going to multiply it by 45. This is the same as taking 814 and adding it to itself 45 times.
Step 1: 0 + 814 = 814
Step 2: 814 + 814 = 1628
Step 3: 1628 + 814 = 2442
Step 4: 2442 + 814 = 3256
Step 5: 3256 + 814 = 4070
Step 6: 4070 + 814 = 4884
Step 7: 4884 + 814 = 5698
Step 8: 5698 + 814 = 6512
Step 9: 6512 + 814 = 7326
Step 10: 7326 + 814 = 8140
Step 11: 8140 + 814 = 8954
Step 12: 8954 + 814 = 9768
Step 13: 9768 + 814 = 10582
Step 14: 10582 + 814 = 11396
Step 15: 11396 + 814 = 12210
Step 16: 12210 + 814 = 13024
Step 17: 13024 + 814 = 13838
Step 18: 13838 + 814 = 14652
Step 19: 14652 + 814 = 15466
Step 20: 15466 + 814 = 16280
Step 21: 16280 + 814 = 17094
Step 22: 17094 + 814 = 17908
Step 23: 17908 + 814 = 18722
Step 24: 18722 + 814 = 19536
Step 25: 19536 + 814 = 20350
Step 26: 20350 + 814 = 21164
Step 27: 21164 + 814 = 21978
Step 28: 21978 + 814 = 22792
Step 29: 22792 + 814 = 23606
Step 30: 23606 + 814 = 24420
Step 31: 24420 + 814 = 25234
Step 32: 25234 + 814 = 26048
Step 33: 26048 + 814 = 26862
Step 34: 26862 + 814 = 27676
Step 35: 27676 + 814 = 28490
Step 36: 28490 + 814 = 29304
Step 37: 29304 + 814 = 30118
Step 38: 30118 + 814 = 30932
Step 39: 30932 + 814 = 31746
Step 40: 31746 + 814 = 32560
Step 41: 32560 + 814 = 33374
Step 42: 33374 + 814 = 34188
Step 43: 34188 + 814 = 35002
Step 44: 35002 + 814 = 35816
Step 45: 35816 + 814 = 36630

So, 814*45 = 36630