Alright, let's solve this math problem step by step. First, we have the number 771. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 161. So, we're going to take the number 771 and add it to itself 161 times.
Step 1: 0 + 771 = 771
Step 2: 771 + 771 = 1542
Step 3: 1542 + 771 = 2313
Step 4: 2313 + 771 = 3084
Step 5: 3084 + 771 = 3855
Step 6: 3855 + 771 = 4626
Step 7: 4626 + 771 = 5397
Step 8: 5397 + 771 = 6168
Step 9: 6168 + 771 = 6939
Step 10: 6939 + 771 = 7710
Step 11: 7710 + 771 = 8481
Step 12: 8481 + 771 = 9252
Step 13: 9252 + 771 = 10023
Step 14: 10023 + 771 = 10794
Step 15: 10794 + 771 = 11565
Step 16: 11565 + 771 = 12336
Step 17: 12336 + 771 = 13107
Step 18: 13107 + 771 = 13878
Step 19: 13878 + 771 = 14649
Step 20: 14649 + 771 = 15420
Step 21: 15420 + 771 = 16191
Step 22: 16191 + 771 = 16962
Step 23: 16962 + 771 = 17733
Step 24: 17733 + 771 = 18504
Step 25: 18504 + 771 = 19275
Step 26: 19275 + 771 = 20046
Step 27: 20046 + 771 = 20817
Step 28: 20817 + 771 = 21588
Step 29: 21588 + 771 = 22359
Step 30: 22359 + 771 = 23130
Step 31: 23130 + 771 = 23901
Step 32: 23901 + 771 = 24672
Step 33: 24672 + 771 = 25443
Step 34: 25443 + 771 = 26214
Step 35: 26214 + 771 = 26985
Step 36: 26985 + 771 = 27756
Step 37: 27756 + 771 = 28527
Step 38: 28527 + 771 = 29298
Step 39: 29298 + 771 = 30069
Step 40: 30069 + 771 = 30840
Step 41: 30840 + 771 = 31611
Step 42: 31611 + 771 = 32382
Step 43: 32382 + 771 = 33153
Step 44: 33153 + 771 = 33924
Step 45: 33924 + 771 = 34695
Step 46: 34695 + 771 = 35466
Step 47: 35466 + 771 = 36237
Step 48: 36237 + 771 = 37008
Step 49: 37008 + 771 = 37779
Step 50: 37779 + 771 = 38550
Step 51: 38550 + 771 = 39321
Step 52: 39321 + 771 = 40092
Step 53: 40092 + 771 = 40863
Step 54: 40863 + 771 = 41634
Step 55: 41634 + 771 = 42405
Step 56: 42405 + 771 = 43176
Step 57: 43176 + 771 = 43947
Step 58: 43947 + 771 = 44718
Step 59: 44718 + 771 = 45489
Step 60: 45489 + 771 = 46260
Step 61: 46260 + 771 = 47031
Step 62: 47031 + 771 = 47802
Step 63: 47802 + 771 = 48573
Step 64: 48573 + 771 = 49344
Step 65: 49344 + 771 = 50115
Step 66: 50115 + 771 = 50886
Step 67: 50886 + 771 = 51657
Step 68: 51657 + 771 = 52428
Step 69: 52428 + 771 = 53199
Step 70: 53199 + 771 = 53970
Step 71: 53970 + 771 = 54741
Step 72: 54741 + 771 = 55512
Step 73: 55512 + 771 = 56283
Step 74: 56283 + 771 = 57054
Step 75: 57054 + 771 = 57825
Step 76: 57825 + 771 = 58596
Step 77: 58596 + 771 = 59367
Step 78: 59367 + 771 = 60138
Step 79: 60138 + 771 = 60909
Step 80: 60909 + 771 = 61680
Step 81: 61680 + 771 = 62451
Step 82: 62451 + 771 = 63222
Step 83: 63222 + 771 = 63993
Step 84: 63993 + 771 = 64764
Step 85: 64764 + 771 = 65535
Step 86: 65535 + 771 = 66306
Step 87: 66306 + 771 = 67077
Step 88: 67077 + 771 = 67848
Step 89: 67848 + 771 = 68619
Step 90: 68619 + 771 = 69390
Step 91: 69390 + 771 = 70161
Step 92: 70161 + 771 = 70932
Step 93: 70932 + 771 = 71703
Step 94: 71703 + 771 = 72474
Step 95: 72474 + 771 = 73245
Step 96: 73245 + 771 = 74016
Step 97: 74016 + 771 = 74787
Step 98: 74787 + 771 = 75558
Step 99: 75558 + 771 = 76329
Step 100: 76329 + 771 = 77100
Step 101: 77100 + 771 = 77871
Step 102: 77871 + 771 = 78642
Step 103: 78642 + 771 = 79413
Step 104: 79413 + 771 = 80184
Step 105: 80184 + 771 = 80955
Step 106: 80955 + 771 = 81726
Step 107: 81726 + 771 = 82497
Step 108: 82497 + 771 = 83268
Step 109: 83268 + 771 = 84039
Step 110: 84039 + 771 = 84810
Step 111: 84810 + 771 = 85581
Step 112: 85581 + 771 = 86352
Step 113: 86352 + 771 = 87123
Step 114: 87123 + 771 = 87894
Step 115: 87894 + 771 = 88665
Step 116: 88665 + 771 = 89436
Step 117: 89436 + 771 = 90207
Step 118: 90207 + 771 = 90978
Step 119: 90978 + 771 = 91749
Step 120: 91749 + 771 = 92520
Step 121: 92520 + 771 = 93291
Step 122: 93291 + 771 = 94062
Step 123: 94062 + 771 = 94833
Step 124: 94833 + 771 = 95604
Step 125: 95604 + 771 = 96375
Step 126: 96375 + 771 = 97146
Step 127: 97146 + 771 = 97917
Step 128: 97917 + 771 = 98688
Step 129: 98688 + 771 = 99459
Step 130: 99459 + 771 = 100230
Step 131: 100230 + 771 = 101001
Step 132: 101001 + 771 = 101772
Step 133: 101772 + 771 = 102543
Step 134: 102543 + 771 = 103314
Step 135: 103314 + 771 = 104085
Step 136: 104085 + 771 = 104856
Step 137: 104856 + 771 = 105627
Step 138: 105627 + 771 = 106398
Step 139: 106398 + 771 = 107169
Step 140: 107169 + 771 = 107940
Step 141: 107940 + 771 = 108711
Step 142: 108711 + 771 = 109482
Step 143: 109482 + 771 = 110253
Step 144: 110253 + 771 = 111024
Step 145: 111024 + 771 = 111795
Step 146: 111795 + 771 = 112566
Step 147: 112566 + 771 = 113337
Step 148: 113337 + 771 = 114108
Step 149: 114108 + 771 = 114879
Step 150: 114879 + 771 = 115650
Step 151: 115650 + 771 = 116421
Step 152: 116421 + 771 = 117192
Step 153: 117192 + 771 = 117963
Step 154: 117963 + 771 = 118734
Step 155: 118734 + 771 = 119505
Step 156: 119505 + 771 = 120276
Step 157: 120276 + 771 = 121047
Step 158: 121047 + 771 = 121818
Step 159: 121818 + 771 = 122589
Step 160: 122589 + 771 = 123360
Step 161: 123360 + 771 = 124131

So, 771*161 = 124131