OK, let's crack this. We're given 266 and our task is to multiply it by 45. Essentially, we'll be adding 266 to itself 45 times.
Step 1: 0 + 266 = 266
Step 2: 266 + 266 = 532
Step 3: 532 + 266 = 798
Step 4: 798 + 266 = 1064
Step 5: 1064 + 266 = 1330
Step 6: 1330 + 266 = 1596
Step 7: 1596 + 266 = 1862
Step 8: 1862 + 266 = 2128
Step 9: 2128 + 266 = 2394
Step 10: 2394 + 266 = 2660
Step 11: 2660 + 266 = 2926
Step 12: 2926 + 266 = 3192
Step 13: 3192 + 266 = 3458
Step 14: 3458 + 266 = 3724
Step 15: 3724 + 266 = 3990
Step 16: 3990 + 266 = 4256
Step 17: 4256 + 266 = 4522
Step 18: 4522 + 266 = 4788
Step 19: 4788 + 266 = 5054
Step 20: 5054 + 266 = 5320
Step 21: 5320 + 266 = 5586
Step 22: 5586 + 266 = 5852
Step 23: 5852 + 266 = 6118
Step 24: 6118 + 266 = 6384
Step 25: 6384 + 266 = 6650
Step 26: 6650 + 266 = 6916
Step 27: 6916 + 266 = 7182
Step 28: 7182 + 266 = 7448
Step 29: 7448 + 266 = 7714
Step 30: 7714 + 266 = 7980
Step 31: 7980 + 266 = 8246
Step 32: 8246 + 266 = 8512
Step 33: 8512 + 266 = 8778
Step 34: 8778 + 266 = 9044
Step 35: 9044 + 266 = 9310
Step 36: 9310 + 266 = 9576
Step 37: 9576 + 266 = 9842
Step 38: 9842 + 266 = 10108
Step 39: 10108 + 266 = 10374
Step 40: 10374 + 266 = 10640
Step 41: 10640 + 266 = 10906
Step 42: 10906 + 266 = 11172
Step 43: 11172 + 266 = 11438
Step 44: 11438 + 266 = 11704
Step 45: 11704 + 266 = 11970

So, 266*45 = 11970