Alright, let's solve this math problem step by step. First, we have the number 581. 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 581 and add it to itself 78 times.
Step 1: 0 + 581 = 581
Step 2: 581 + 581 = 1162
Step 3: 1162 + 581 = 1743
Step 4: 1743 + 581 = 2324
Step 5: 2324 + 581 = 2905
Step 6: 2905 + 581 = 3486
Step 7: 3486 + 581 = 4067
Step 8: 4067 + 581 = 4648
Step 9: 4648 + 581 = 5229
Step 10: 5229 + 581 = 5810
Step 11: 5810 + 581 = 6391
Step 12: 6391 + 581 = 6972
Step 13: 6972 + 581 = 7553
Step 14: 7553 + 581 = 8134
Step 15: 8134 + 581 = 8715
Step 16: 8715 + 581 = 9296
Step 17: 9296 + 581 = 9877
Step 18: 9877 + 581 = 10458
Step 19: 10458 + 581 = 11039
Step 20: 11039 + 581 = 11620
Step 21: 11620 + 581 = 12201
Step 22: 12201 + 581 = 12782
Step 23: 12782 + 581 = 13363
Step 24: 13363 + 581 = 13944
Step 25: 13944 + 581 = 14525
Step 26: 14525 + 581 = 15106
Step 27: 15106 + 581 = 15687
Step 28: 15687 + 581 = 16268
Step 29: 16268 + 581 = 16849
Step 30: 16849 + 581 = 17430
Step 31: 17430 + 581 = 18011
Step 32: 18011 + 581 = 18592
Step 33: 18592 + 581 = 19173
Step 34: 19173 + 581 = 19754
Step 35: 19754 + 581 = 20335
Step 36: 20335 + 581 = 20916
Step 37: 20916 + 581 = 21497
Step 38: 21497 + 581 = 22078
Step 39: 22078 + 581 = 22659
Step 40: 22659 + 581 = 23240
Step 41: 23240 + 581 = 23821
Step 42: 23821 + 581 = 24402
Step 43: 24402 + 581 = 24983
Step 44: 24983 + 581 = 25564
Step 45: 25564 + 581 = 26145
Step 46: 26145 + 581 = 26726
Step 47: 26726 + 581 = 27307
Step 48: 27307 + 581 = 27888
Step 49: 27888 + 581 = 28469
Step 50: 28469 + 581 = 29050
Step 51: 29050 + 581 = 29631
Step 52: 29631 + 581 = 30212
Step 53: 30212 + 581 = 30793
Step 54: 30793 + 581 = 31374
Step 55: 31374 + 581 = 31955
Step 56: 31955 + 581 = 32536
Step 57: 32536 + 581 = 33117
Step 58: 33117 + 581 = 33698
Step 59: 33698 + 581 = 34279
Step 60: 34279 + 581 = 34860
Step 61: 34860 + 581 = 35441
Step 62: 35441 + 581 = 36022
Step 63: 36022 + 581 = 36603
Step 64: 36603 + 581 = 37184
Step 65: 37184 + 581 = 37765
Step 66: 37765 + 581 = 38346
Step 67: 38346 + 581 = 38927
Step 68: 38927 + 581 = 39508
Step 69: 39508 + 581 = 40089
Step 70: 40089 + 581 = 40670
Step 71: 40670 + 581 = 41251
Step 72: 41251 + 581 = 41832
Step 73: 41832 + 581 = 42413
Step 74: 42413 + 581 = 42994
Step 75: 42994 + 581 = 43575
Step 76: 43575 + 581 = 44156
Step 77: 44156 + 581 = 44737
Step 78: 44737 + 581 = 45318

So, 581*78 = 45318