OK, let's work through this together. We're starting with 983 and we're going to multiply it by 79, which means we add 983 to itself 79 times.
Step 1: 0 + 983 = 983
Step 2: 983 + 983 = 1966
Step 3: 1966 + 983 = 2949
Step 4: 2949 + 983 = 3932
Step 5: 3932 + 983 = 4915
Step 6: 4915 + 983 = 5898
Step 7: 5898 + 983 = 6881
Step 8: 6881 + 983 = 7864
Step 9: 7864 + 983 = 8847
Step 10: 8847 + 983 = 9830
Step 11: 9830 + 983 = 10813
Step 12: 10813 + 983 = 11796
Step 13: 11796 + 983 = 12779
Step 14: 12779 + 983 = 13762
Step 15: 13762 + 983 = 14745
Step 16: 14745 + 983 = 15728
Step 17: 15728 + 983 = 16711
Step 18: 16711 + 983 = 17694
Step 19: 17694 + 983 = 18677
Step 20: 18677 + 983 = 19660
Step 21: 19660 + 983 = 20643
Step 22: 20643 + 983 = 21626
Step 23: 21626 + 983 = 22609
Step 24: 22609 + 983 = 23592
Step 25: 23592 + 983 = 24575
Step 26: 24575 + 983 = 25558
Step 27: 25558 + 983 = 26541
Step 28: 26541 + 983 = 27524
Step 29: 27524 + 983 = 28507
Step 30: 28507 + 983 = 29490
Step 31: 29490 + 983 = 30473
Step 32: 30473 + 983 = 31456
Step 33: 31456 + 983 = 32439
Step 34: 32439 + 983 = 33422
Step 35: 33422 + 983 = 34405
Step 36: 34405 + 983 = 35388
Step 37: 35388 + 983 = 36371
Step 38: 36371 + 983 = 37354
Step 39: 37354 + 983 = 38337
Step 40: 38337 + 983 = 39320
Step 41: 39320 + 983 = 40303
Step 42: 40303 + 983 = 41286
Step 43: 41286 + 983 = 42269
Step 44: 42269 + 983 = 43252
Step 45: 43252 + 983 = 44235
Step 46: 44235 + 983 = 45218
Step 47: 45218 + 983 = 46201
Step 48: 46201 + 983 = 47184
Step 49: 47184 + 983 = 48167
Step 50: 48167 + 983 = 49150
Step 51: 49150 + 983 = 50133
Step 52: 50133 + 983 = 51116
Step 53: 51116 + 983 = 52099
Step 54: 52099 + 983 = 53082
Step 55: 53082 + 983 = 54065
Step 56: 54065 + 983 = 55048
Step 57: 55048 + 983 = 56031
Step 58: 56031 + 983 = 57014
Step 59: 57014 + 983 = 57997
Step 60: 57997 + 983 = 58980
Step 61: 58980 + 983 = 59963
Step 62: 59963 + 983 = 60946
Step 63: 60946 + 983 = 61929
Step 64: 61929 + 983 = 62912
Step 65: 62912 + 983 = 63895
Step 66: 63895 + 983 = 64878
Step 67: 64878 + 983 = 65861
Step 68: 65861 + 983 = 66844
Step 69: 66844 + 983 = 67827
Step 70: 67827 + 983 = 68810
Step 71: 68810 + 983 = 69793
Step 72: 69793 + 983 = 70776
Step 73: 70776 + 983 = 71759
Step 74: 71759 + 983 = 72742
Step 75: 72742 + 983 = 73725
Step 76: 73725 + 983 = 74708
Step 77: 74708 + 983 = 75691
Step 78: 75691 + 983 = 76674
Step 79: 76674 + 983 = 77657

So, 983*79 = 77657