Let's get this math done. We have 918 and we're going to multiply it by 40. This is the same as taking 918 and adding it to itself 40 times.
Step 1: 0 + 918 = 918
Step 2: 918 + 918 = 1836
Step 3: 1836 + 918 = 2754
Step 4: 2754 + 918 = 3672
Step 5: 3672 + 918 = 4590
Step 6: 4590 + 918 = 5508
Step 7: 5508 + 918 = 6426
Step 8: 6426 + 918 = 7344
Step 9: 7344 + 918 = 8262
Step 10: 8262 + 918 = 9180
Step 11: 9180 + 918 = 10098
Step 12: 10098 + 918 = 11016
Step 13: 11016 + 918 = 11934
Step 14: 11934 + 918 = 12852
Step 15: 12852 + 918 = 13770
Step 16: 13770 + 918 = 14688
Step 17: 14688 + 918 = 15606
Step 18: 15606 + 918 = 16524
Step 19: 16524 + 918 = 17442
Step 20: 17442 + 918 = 18360
Step 21: 18360 + 918 = 19278
Step 22: 19278 + 918 = 20196
Step 23: 20196 + 918 = 21114
Step 24: 21114 + 918 = 22032
Step 25: 22032 + 918 = 22950
Step 26: 22950 + 918 = 23868
Step 27: 23868 + 918 = 24786
Step 28: 24786 + 918 = 25704
Step 29: 25704 + 918 = 26622
Step 30: 26622 + 918 = 27540
Step 31: 27540 + 918 = 28458
Step 32: 28458 + 918 = 29376
Step 33: 29376 + 918 = 30294
Step 34: 30294 + 918 = 31212
Step 35: 31212 + 918 = 32130
Step 36: 32130 + 918 = 33048
Step 37: 33048 + 918 = 33966
Step 38: 33966 + 918 = 34884
Step 39: 34884 + 918 = 35802
Step 40: 35802 + 918 = 36720

So, 918*40 = 36720