Alright, let's solve this math problem step by step. First, we have the number 661. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 88. So, we're going to take the number 661 and add it to itself 88 times.
Step 1: 0 + 661 = 661
Step 2: 661 + 661 = 1322
Step 3: 1322 + 661 = 1983
Step 4: 1983 + 661 = 2644
Step 5: 2644 + 661 = 3305
Step 6: 3305 + 661 = 3966
Step 7: 3966 + 661 = 4627
Step 8: 4627 + 661 = 5288
Step 9: 5288 + 661 = 5949
Step 10: 5949 + 661 = 6610
Step 11: 6610 + 661 = 7271
Step 12: 7271 + 661 = 7932
Step 13: 7932 + 661 = 8593
Step 14: 8593 + 661 = 9254
Step 15: 9254 + 661 = 9915
Step 16: 9915 + 661 = 10576
Step 17: 10576 + 661 = 11237
Step 18: 11237 + 661 = 11898
Step 19: 11898 + 661 = 12559
Step 20: 12559 + 661 = 13220
Step 21: 13220 + 661 = 13881
Step 22: 13881 + 661 = 14542
Step 23: 14542 + 661 = 15203
Step 24: 15203 + 661 = 15864
Step 25: 15864 + 661 = 16525
Step 26: 16525 + 661 = 17186
Step 27: 17186 + 661 = 17847
Step 28: 17847 + 661 = 18508
Step 29: 18508 + 661 = 19169
Step 30: 19169 + 661 = 19830
Step 31: 19830 + 661 = 20491
Step 32: 20491 + 661 = 21152
Step 33: 21152 + 661 = 21813
Step 34: 21813 + 661 = 22474
Step 35: 22474 + 661 = 23135
Step 36: 23135 + 661 = 23796
Step 37: 23796 + 661 = 24457
Step 38: 24457 + 661 = 25118
Step 39: 25118 + 661 = 25779
Step 40: 25779 + 661 = 26440
Step 41: 26440 + 661 = 27101
Step 42: 27101 + 661 = 27762
Step 43: 27762 + 661 = 28423
Step 44: 28423 + 661 = 29084
Step 45: 29084 + 661 = 29745
Step 46: 29745 + 661 = 30406
Step 47: 30406 + 661 = 31067
Step 48: 31067 + 661 = 31728
Step 49: 31728 + 661 = 32389
Step 50: 32389 + 661 = 33050
Step 51: 33050 + 661 = 33711
Step 52: 33711 + 661 = 34372
Step 53: 34372 + 661 = 35033
Step 54: 35033 + 661 = 35694
Step 55: 35694 + 661 = 36355
Step 56: 36355 + 661 = 37016
Step 57: 37016 + 661 = 37677
Step 58: 37677 + 661 = 38338
Step 59: 38338 + 661 = 38999
Step 60: 38999 + 661 = 39660
Step 61: 39660 + 661 = 40321
Step 62: 40321 + 661 = 40982
Step 63: 40982 + 661 = 41643
Step 64: 41643 + 661 = 42304
Step 65: 42304 + 661 = 42965
Step 66: 42965 + 661 = 43626
Step 67: 43626 + 661 = 44287
Step 68: 44287 + 661 = 44948
Step 69: 44948 + 661 = 45609
Step 70: 45609 + 661 = 46270
Step 71: 46270 + 661 = 46931
Step 72: 46931 + 661 = 47592
Step 73: 47592 + 661 = 48253
Step 74: 48253 + 661 = 48914
Step 75: 48914 + 661 = 49575
Step 76: 49575 + 661 = 50236
Step 77: 50236 + 661 = 50897
Step 78: 50897 + 661 = 51558
Step 79: 51558 + 661 = 52219
Step 80: 52219 + 661 = 52880
Step 81: 52880 + 661 = 53541
Step 82: 53541 + 661 = 54202
Step 83: 54202 + 661 = 54863
Step 84: 54863 + 661 = 55524
Step 85: 55524 + 661 = 56185
Step 86: 56185 + 661 = 56846
Step 87: 56846 + 661 = 57507
Step 88: 57507 + 661 = 58168

So, 661*88 = 58168