Let's get this math done. We have 41 and we're going to multiply it by 31. This is the same as taking 41 and adding it to itself 31 times.
Step 1: 0 + 41 = 41
Step 2: 41 + 41 = 82
Step 3: 82 + 41 = 123
Step 4: 123 + 41 = 164
Step 5: 164 + 41 = 205
Step 6: 205 + 41 = 246
Step 7: 246 + 41 = 287
Step 8: 287 + 41 = 328
Step 9: 328 + 41 = 369
Step 10: 369 + 41 = 410
Step 11: 410 + 41 = 451
Step 12: 451 + 41 = 492
Step 13: 492 + 41 = 533
Step 14: 533 + 41 = 574
Step 15: 574 + 41 = 615
Step 16: 615 + 41 = 656
Step 17: 656 + 41 = 697
Step 18: 697 + 41 = 738
Step 19: 738 + 41 = 779
Step 20: 779 + 41 = 820
Step 21: 820 + 41 = 861
Step 22: 861 + 41 = 902
Step 23: 902 + 41 = 943
Step 24: 943 + 41 = 984
Step 25: 984 + 41 = 1025
Step 26: 1025 + 41 = 1066
Step 27: 1066 + 41 = 1107
Step 28: 1107 + 41 = 1148
Step 29: 1148 + 41 = 1189
Step 30: 1189 + 41 = 1230
Step 31: 1230 + 41 = 1271

So, 41*31 = 1271