Alright, let's solve this math problem step by step. First, we have the number 261. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 99. So, we're going to take the number 261 and add it to itself 99 times.
Step 1: 0 + 261 = 261
Step 2: 261 + 261 = 522
Step 3: 522 + 261 = 783
Step 4: 783 + 261 = 1044
Step 5: 1044 + 261 = 1305
Step 6: 1305 + 261 = 1566
Step 7: 1566 + 261 = 1827
Step 8: 1827 + 261 = 2088
Step 9: 2088 + 261 = 2349
Step 10: 2349 + 261 = 2610
Step 11: 2610 + 261 = 2871
Step 12: 2871 + 261 = 3132
Step 13: 3132 + 261 = 3393
Step 14: 3393 + 261 = 3654
Step 15: 3654 + 261 = 3915
Step 16: 3915 + 261 = 4176
Step 17: 4176 + 261 = 4437
Step 18: 4437 + 261 = 4698
Step 19: 4698 + 261 = 4959
Step 20: 4959 + 261 = 5220
Step 21: 5220 + 261 = 5481
Step 22: 5481 + 261 = 5742
Step 23: 5742 + 261 = 6003
Step 24: 6003 + 261 = 6264
Step 25: 6264 + 261 = 6525
Step 26: 6525 + 261 = 6786
Step 27: 6786 + 261 = 7047
Step 28: 7047 + 261 = 7308
Step 29: 7308 + 261 = 7569
Step 30: 7569 + 261 = 7830
Step 31: 7830 + 261 = 8091
Step 32: 8091 + 261 = 8352
Step 33: 8352 + 261 = 8613
Step 34: 8613 + 261 = 8874
Step 35: 8874 + 261 = 9135
Step 36: 9135 + 261 = 9396
Step 37: 9396 + 261 = 9657
Step 38: 9657 + 261 = 9918
Step 39: 9918 + 261 = 10179
Step 40: 10179 + 261 = 10440
Step 41: 10440 + 261 = 10701
Step 42: 10701 + 261 = 10962
Step 43: 10962 + 261 = 11223
Step 44: 11223 + 261 = 11484
Step 45: 11484 + 261 = 11745
Step 46: 11745 + 261 = 12006
Step 47: 12006 + 261 = 12267
Step 48: 12267 + 261 = 12528
Step 49: 12528 + 261 = 12789
Step 50: 12789 + 261 = 13050
Step 51: 13050 + 261 = 13311
Step 52: 13311 + 261 = 13572
Step 53: 13572 + 261 = 13833
Step 54: 13833 + 261 = 14094
Step 55: 14094 + 261 = 14355
Step 56: 14355 + 261 = 14616
Step 57: 14616 + 261 = 14877
Step 58: 14877 + 261 = 15138
Step 59: 15138 + 261 = 15399
Step 60: 15399 + 261 = 15660
Step 61: 15660 + 261 = 15921
Step 62: 15921 + 261 = 16182
Step 63: 16182 + 261 = 16443
Step 64: 16443 + 261 = 16704
Step 65: 16704 + 261 = 16965
Step 66: 16965 + 261 = 17226
Step 67: 17226 + 261 = 17487
Step 68: 17487 + 261 = 17748
Step 69: 17748 + 261 = 18009
Step 70: 18009 + 261 = 18270
Step 71: 18270 + 261 = 18531
Step 72: 18531 + 261 = 18792
Step 73: 18792 + 261 = 19053
Step 74: 19053 + 261 = 19314
Step 75: 19314 + 261 = 19575
Step 76: 19575 + 261 = 19836
Step 77: 19836 + 261 = 20097
Step 78: 20097 + 261 = 20358
Step 79: 20358 + 261 = 20619
Step 80: 20619 + 261 = 20880
Step 81: 20880 + 261 = 21141
Step 82: 21141 + 261 = 21402
Step 83: 21402 + 261 = 21663
Step 84: 21663 + 261 = 21924
Step 85: 21924 + 261 = 22185
Step 86: 22185 + 261 = 22446
Step 87: 22446 + 261 = 22707
Step 88: 22707 + 261 = 22968
Step 89: 22968 + 261 = 23229
Step 90: 23229 + 261 = 23490
Step 91: 23490 + 261 = 23751
Step 92: 23751 + 261 = 24012
Step 93: 24012 + 261 = 24273
Step 94: 24273 + 261 = 24534
Step 95: 24534 + 261 = 24795
Step 96: 24795 + 261 = 25056
Step 97: 25056 + 261 = 25317
Step 98: 25317 + 261 = 25578
Step 99: 25578 + 261 = 25839

So, 261*99 = 25839