Without delay, let's solve this. We've got 261 and we will be multiplying it by 70, that is, adding 261 to itself 70 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

So, 261*70 = 18270