Alright, let's solve this math problem step by step. First, we have the number 549. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 78. So, we're going to take the number 549 and add it to itself 78 times.
Step 1: 0 + 549 = 549
Step 2: 549 + 549 = 1098
Step 3: 1098 + 549 = 1647
Step 4: 1647 + 549 = 2196
Step 5: 2196 + 549 = 2745
Step 6: 2745 + 549 = 3294
Step 7: 3294 + 549 = 3843
Step 8: 3843 + 549 = 4392
Step 9: 4392 + 549 = 4941
Step 10: 4941 + 549 = 5490
Step 11: 5490 + 549 = 6039
Step 12: 6039 + 549 = 6588
Step 13: 6588 + 549 = 7137
Step 14: 7137 + 549 = 7686
Step 15: 7686 + 549 = 8235
Step 16: 8235 + 549 = 8784
Step 17: 8784 + 549 = 9333
Step 18: 9333 + 549 = 9882
Step 19: 9882 + 549 = 10431
Step 20: 10431 + 549 = 10980
Step 21: 10980 + 549 = 11529
Step 22: 11529 + 549 = 12078
Step 23: 12078 + 549 = 12627
Step 24: 12627 + 549 = 13176
Step 25: 13176 + 549 = 13725
Step 26: 13725 + 549 = 14274
Step 27: 14274 + 549 = 14823
Step 28: 14823 + 549 = 15372
Step 29: 15372 + 549 = 15921
Step 30: 15921 + 549 = 16470
Step 31: 16470 + 549 = 17019
Step 32: 17019 + 549 = 17568
Step 33: 17568 + 549 = 18117
Step 34: 18117 + 549 = 18666
Step 35: 18666 + 549 = 19215
Step 36: 19215 + 549 = 19764
Step 37: 19764 + 549 = 20313
Step 38: 20313 + 549 = 20862
Step 39: 20862 + 549 = 21411
Step 40: 21411 + 549 = 21960
Step 41: 21960 + 549 = 22509
Step 42: 22509 + 549 = 23058
Step 43: 23058 + 549 = 23607
Step 44: 23607 + 549 = 24156
Step 45: 24156 + 549 = 24705
Step 46: 24705 + 549 = 25254
Step 47: 25254 + 549 = 25803
Step 48: 25803 + 549 = 26352
Step 49: 26352 + 549 = 26901
Step 50: 26901 + 549 = 27450
Step 51: 27450 + 549 = 27999
Step 52: 27999 + 549 = 28548
Step 53: 28548 + 549 = 29097
Step 54: 29097 + 549 = 29646
Step 55: 29646 + 549 = 30195
Step 56: 30195 + 549 = 30744
Step 57: 30744 + 549 = 31293
Step 58: 31293 + 549 = 31842
Step 59: 31842 + 549 = 32391
Step 60: 32391 + 549 = 32940
Step 61: 32940 + 549 = 33489
Step 62: 33489 + 549 = 34038
Step 63: 34038 + 549 = 34587
Step 64: 34587 + 549 = 35136
Step 65: 35136 + 549 = 35685
Step 66: 35685 + 549 = 36234
Step 67: 36234 + 549 = 36783
Step 68: 36783 + 549 = 37332
Step 69: 37332 + 549 = 37881
Step 70: 37881 + 549 = 38430
Step 71: 38430 + 549 = 38979
Step 72: 38979 + 549 = 39528
Step 73: 39528 + 549 = 40077
Step 74: 40077 + 549 = 40626
Step 75: 40626 + 549 = 41175
Step 76: 41175 + 549 = 41724
Step 77: 41724 + 549 = 42273
Step 78: 42273 + 549 = 42822

So, 549*78 = 42822