Without delay, let's solve this. We've got 281 and we will be multiplying it by 45, that is, adding 281 to itself 45 times.
Step 1: 0 + 281 = 281
Step 2: 281 + 281 = 562
Step 3: 562 + 281 = 843
Step 4: 843 + 281 = 1124
Step 5: 1124 + 281 = 1405
Step 6: 1405 + 281 = 1686
Step 7: 1686 + 281 = 1967
Step 8: 1967 + 281 = 2248
Step 9: 2248 + 281 = 2529
Step 10: 2529 + 281 = 2810
Step 11: 2810 + 281 = 3091
Step 12: 3091 + 281 = 3372
Step 13: 3372 + 281 = 3653
Step 14: 3653 + 281 = 3934
Step 15: 3934 + 281 = 4215
Step 16: 4215 + 281 = 4496
Step 17: 4496 + 281 = 4777
Step 18: 4777 + 281 = 5058
Step 19: 5058 + 281 = 5339
Step 20: 5339 + 281 = 5620
Step 21: 5620 + 281 = 5901
Step 22: 5901 + 281 = 6182
Step 23: 6182 + 281 = 6463
Step 24: 6463 + 281 = 6744
Step 25: 6744 + 281 = 7025
Step 26: 7025 + 281 = 7306
Step 27: 7306 + 281 = 7587
Step 28: 7587 + 281 = 7868
Step 29: 7868 + 281 = 8149
Step 30: 8149 + 281 = 8430
Step 31: 8430 + 281 = 8711
Step 32: 8711 + 281 = 8992
Step 33: 8992 + 281 = 9273
Step 34: 9273 + 281 = 9554
Step 35: 9554 + 281 = 9835
Step 36: 9835 + 281 = 10116
Step 37: 10116 + 281 = 10397
Step 38: 10397 + 281 = 10678
Step 39: 10678 + 281 = 10959
Step 40: 10959 + 281 = 11240
Step 41: 11240 + 281 = 11521
Step 42: 11521 + 281 = 11802
Step 43: 11802 + 281 = 12083
Step 44: 12083 + 281 = 12364
Step 45: 12364 + 281 = 12645

So, 281*45 = 12645