Let's roll up our sleeves and solve this. We have 411 and we're going to multiply it by 71, essentially adding 411 to itself 71 times.
Step 1: 0 + 411 = 411
Step 2: 411 + 411 = 822
Step 3: 822 + 411 = 1233
Step 4: 1233 + 411 = 1644
Step 5: 1644 + 411 = 2055
Step 6: 2055 + 411 = 2466
Step 7: 2466 + 411 = 2877
Step 8: 2877 + 411 = 3288
Step 9: 3288 + 411 = 3699
Step 10: 3699 + 411 = 4110
Step 11: 4110 + 411 = 4521
Step 12: 4521 + 411 = 4932
Step 13: 4932 + 411 = 5343
Step 14: 5343 + 411 = 5754
Step 15: 5754 + 411 = 6165
Step 16: 6165 + 411 = 6576
Step 17: 6576 + 411 = 6987
Step 18: 6987 + 411 = 7398
Step 19: 7398 + 411 = 7809
Step 20: 7809 + 411 = 8220
Step 21: 8220 + 411 = 8631
Step 22: 8631 + 411 = 9042
Step 23: 9042 + 411 = 9453
Step 24: 9453 + 411 = 9864
Step 25: 9864 + 411 = 10275
Step 26: 10275 + 411 = 10686
Step 27: 10686 + 411 = 11097
Step 28: 11097 + 411 = 11508
Step 29: 11508 + 411 = 11919
Step 30: 11919 + 411 = 12330
Step 31: 12330 + 411 = 12741
Step 32: 12741 + 411 = 13152
Step 33: 13152 + 411 = 13563
Step 34: 13563 + 411 = 13974
Step 35: 13974 + 411 = 14385
Step 36: 14385 + 411 = 14796
Step 37: 14796 + 411 = 15207
Step 38: 15207 + 411 = 15618
Step 39: 15618 + 411 = 16029
Step 40: 16029 + 411 = 16440
Step 41: 16440 + 411 = 16851
Step 42: 16851 + 411 = 17262
Step 43: 17262 + 411 = 17673
Step 44: 17673 + 411 = 18084
Step 45: 18084 + 411 = 18495
Step 46: 18495 + 411 = 18906
Step 47: 18906 + 411 = 19317
Step 48: 19317 + 411 = 19728
Step 49: 19728 + 411 = 20139
Step 50: 20139 + 411 = 20550
Step 51: 20550 + 411 = 20961
Step 52: 20961 + 411 = 21372
Step 53: 21372 + 411 = 21783
Step 54: 21783 + 411 = 22194
Step 55: 22194 + 411 = 22605
Step 56: 22605 + 411 = 23016
Step 57: 23016 + 411 = 23427
Step 58: 23427 + 411 = 23838
Step 59: 23838 + 411 = 24249
Step 60: 24249 + 411 = 24660
Step 61: 24660 + 411 = 25071
Step 62: 25071 + 411 = 25482
Step 63: 25482 + 411 = 25893
Step 64: 25893 + 411 = 26304
Step 65: 26304 + 411 = 26715
Step 66: 26715 + 411 = 27126
Step 67: 27126 + 411 = 27537
Step 68: 27537 + 411 = 27948
Step 69: 27948 + 411 = 28359
Step 70: 28359 + 411 = 28770
Step 71: 28770 + 411 = 29181

So, 411*71 = 29181