Let's roll up our sleeves and solve this. We have 438 and we're going to multiply it by 82, essentially adding 438 to itself 82 times.
Step 1: 0 + 438 = 438
Step 2: 438 + 438 = 876
Step 3: 876 + 438 = 1314
Step 4: 1314 + 438 = 1752
Step 5: 1752 + 438 = 2190
Step 6: 2190 + 438 = 2628
Step 7: 2628 + 438 = 3066
Step 8: 3066 + 438 = 3504
Step 9: 3504 + 438 = 3942
Step 10: 3942 + 438 = 4380
Step 11: 4380 + 438 = 4818
Step 12: 4818 + 438 = 5256
Step 13: 5256 + 438 = 5694
Step 14: 5694 + 438 = 6132
Step 15: 6132 + 438 = 6570
Step 16: 6570 + 438 = 7008
Step 17: 7008 + 438 = 7446
Step 18: 7446 + 438 = 7884
Step 19: 7884 + 438 = 8322
Step 20: 8322 + 438 = 8760
Step 21: 8760 + 438 = 9198
Step 22: 9198 + 438 = 9636
Step 23: 9636 + 438 = 10074
Step 24: 10074 + 438 = 10512
Step 25: 10512 + 438 = 10950
Step 26: 10950 + 438 = 11388
Step 27: 11388 + 438 = 11826
Step 28: 11826 + 438 = 12264
Step 29: 12264 + 438 = 12702
Step 30: 12702 + 438 = 13140
Step 31: 13140 + 438 = 13578
Step 32: 13578 + 438 = 14016
Step 33: 14016 + 438 = 14454
Step 34: 14454 + 438 = 14892
Step 35: 14892 + 438 = 15330
Step 36: 15330 + 438 = 15768
Step 37: 15768 + 438 = 16206
Step 38: 16206 + 438 = 16644
Step 39: 16644 + 438 = 17082
Step 40: 17082 + 438 = 17520
Step 41: 17520 + 438 = 17958
Step 42: 17958 + 438 = 18396
Step 43: 18396 + 438 = 18834
Step 44: 18834 + 438 = 19272
Step 45: 19272 + 438 = 19710
Step 46: 19710 + 438 = 20148
Step 47: 20148 + 438 = 20586
Step 48: 20586 + 438 = 21024
Step 49: 21024 + 438 = 21462
Step 50: 21462 + 438 = 21900
Step 51: 21900 + 438 = 22338
Step 52: 22338 + 438 = 22776
Step 53: 22776 + 438 = 23214
Step 54: 23214 + 438 = 23652
Step 55: 23652 + 438 = 24090
Step 56: 24090 + 438 = 24528
Step 57: 24528 + 438 = 24966
Step 58: 24966 + 438 = 25404
Step 59: 25404 + 438 = 25842
Step 60: 25842 + 438 = 26280
Step 61: 26280 + 438 = 26718
Step 62: 26718 + 438 = 27156
Step 63: 27156 + 438 = 27594
Step 64: 27594 + 438 = 28032
Step 65: 28032 + 438 = 28470
Step 66: 28470 + 438 = 28908
Step 67: 28908 + 438 = 29346
Step 68: 29346 + 438 = 29784
Step 69: 29784 + 438 = 30222
Step 70: 30222 + 438 = 30660
Step 71: 30660 + 438 = 31098
Step 72: 31098 + 438 = 31536
Step 73: 31536 + 438 = 31974
Step 74: 31974 + 438 = 32412
Step 75: 32412 + 438 = 32850
Step 76: 32850 + 438 = 33288
Step 77: 33288 + 438 = 33726
Step 78: 33726 + 438 = 34164
Step 79: 34164 + 438 = 34602
Step 80: 34602 + 438 = 35040
Step 81: 35040 + 438 = 35478
Step 82: 35478 + 438 = 35916

So, 438*82 = 35916