OK, let's crack this. We're given 971 and our task is to multiply it by 80. Essentially, we'll be adding 971 to itself 80 times.
Step 1: 0 + 971 = 971
Step 2: 971 + 971 = 1942
Step 3: 1942 + 971 = 2913
Step 4: 2913 + 971 = 3884
Step 5: 3884 + 971 = 4855
Step 6: 4855 + 971 = 5826
Step 7: 5826 + 971 = 6797
Step 8: 6797 + 971 = 7768
Step 9: 7768 + 971 = 8739
Step 10: 8739 + 971 = 9710
Step 11: 9710 + 971 = 10681
Step 12: 10681 + 971 = 11652
Step 13: 11652 + 971 = 12623
Step 14: 12623 + 971 = 13594
Step 15: 13594 + 971 = 14565
Step 16: 14565 + 971 = 15536
Step 17: 15536 + 971 = 16507
Step 18: 16507 + 971 = 17478
Step 19: 17478 + 971 = 18449
Step 20: 18449 + 971 = 19420
Step 21: 19420 + 971 = 20391
Step 22: 20391 + 971 = 21362
Step 23: 21362 + 971 = 22333
Step 24: 22333 + 971 = 23304
Step 25: 23304 + 971 = 24275
Step 26: 24275 + 971 = 25246
Step 27: 25246 + 971 = 26217
Step 28: 26217 + 971 = 27188
Step 29: 27188 + 971 = 28159
Step 30: 28159 + 971 = 29130
Step 31: 29130 + 971 = 30101
Step 32: 30101 + 971 = 31072
Step 33: 31072 + 971 = 32043
Step 34: 32043 + 971 = 33014
Step 35: 33014 + 971 = 33985
Step 36: 33985 + 971 = 34956
Step 37: 34956 + 971 = 35927
Step 38: 35927 + 971 = 36898
Step 39: 36898 + 971 = 37869
Step 40: 37869 + 971 = 38840
Step 41: 38840 + 971 = 39811
Step 42: 39811 + 971 = 40782
Step 43: 40782 + 971 = 41753
Step 44: 41753 + 971 = 42724
Step 45: 42724 + 971 = 43695
Step 46: 43695 + 971 = 44666
Step 47: 44666 + 971 = 45637
Step 48: 45637 + 971 = 46608
Step 49: 46608 + 971 = 47579
Step 50: 47579 + 971 = 48550
Step 51: 48550 + 971 = 49521
Step 52: 49521 + 971 = 50492
Step 53: 50492 + 971 = 51463
Step 54: 51463 + 971 = 52434
Step 55: 52434 + 971 = 53405
Step 56: 53405 + 971 = 54376
Step 57: 54376 + 971 = 55347
Step 58: 55347 + 971 = 56318
Step 59: 56318 + 971 = 57289
Step 60: 57289 + 971 = 58260
Step 61: 58260 + 971 = 59231
Step 62: 59231 + 971 = 60202
Step 63: 60202 + 971 = 61173
Step 64: 61173 + 971 = 62144
Step 65: 62144 + 971 = 63115
Step 66: 63115 + 971 = 64086
Step 67: 64086 + 971 = 65057
Step 68: 65057 + 971 = 66028
Step 69: 66028 + 971 = 66999
Step 70: 66999 + 971 = 67970
Step 71: 67970 + 971 = 68941
Step 72: 68941 + 971 = 69912
Step 73: 69912 + 971 = 70883
Step 74: 70883 + 971 = 71854
Step 75: 71854 + 971 = 72825
Step 76: 72825 + 971 = 73796
Step 77: 73796 + 971 = 74767
Step 78: 74767 + 971 = 75738
Step 79: 75738 + 971 = 76709
Step 80: 76709 + 971 = 77680

So, 971*80 = 77680