Sure thing, let's get straight to it. We start with 259 and we're going to multiply it by 54, which means adding 259 to itself 54 times.
Step 1: 0 + 259 = 259
Step 2: 259 + 259 = 518
Step 3: 518 + 259 = 777
Step 4: 777 + 259 = 1036
Step 5: 1036 + 259 = 1295
Step 6: 1295 + 259 = 1554
Step 7: 1554 + 259 = 1813
Step 8: 1813 + 259 = 2072
Step 9: 2072 + 259 = 2331
Step 10: 2331 + 259 = 2590
Step 11: 2590 + 259 = 2849
Step 12: 2849 + 259 = 3108
Step 13: 3108 + 259 = 3367
Step 14: 3367 + 259 = 3626
Step 15: 3626 + 259 = 3885
Step 16: 3885 + 259 = 4144
Step 17: 4144 + 259 = 4403
Step 18: 4403 + 259 = 4662
Step 19: 4662 + 259 = 4921
Step 20: 4921 + 259 = 5180
Step 21: 5180 + 259 = 5439
Step 22: 5439 + 259 = 5698
Step 23: 5698 + 259 = 5957
Step 24: 5957 + 259 = 6216
Step 25: 6216 + 259 = 6475
Step 26: 6475 + 259 = 6734
Step 27: 6734 + 259 = 6993
Step 28: 6993 + 259 = 7252
Step 29: 7252 + 259 = 7511
Step 30: 7511 + 259 = 7770
Step 31: 7770 + 259 = 8029
Step 32: 8029 + 259 = 8288
Step 33: 8288 + 259 = 8547
Step 34: 8547 + 259 = 8806
Step 35: 8806 + 259 = 9065
Step 36: 9065 + 259 = 9324
Step 37: 9324 + 259 = 9583
Step 38: 9583 + 259 = 9842
Step 39: 9842 + 259 = 10101
Step 40: 10101 + 259 = 10360
Step 41: 10360 + 259 = 10619
Step 42: 10619 + 259 = 10878
Step 43: 10878 + 259 = 11137
Step 44: 11137 + 259 = 11396
Step 45: 11396 + 259 = 11655
Step 46: 11655 + 259 = 11914
Step 47: 11914 + 259 = 12173
Step 48: 12173 + 259 = 12432
Step 49: 12432 + 259 = 12691
Step 50: 12691 + 259 = 12950
Step 51: 12950 + 259 = 13209
Step 52: 13209 + 259 = 13468
Step 53: 13468 + 259 = 13727
Step 54: 13727 + 259 = 13986

So, 259*54 = 13986