Without delay, let's solve this. We've got 87 and we will be multiplying it by 54, that is, adding 87 to itself 54 times.
Step 1: 0 + 87 = 87
Step 2: 87 + 87 = 174
Step 3: 174 + 87 = 261
Step 4: 261 + 87 = 348
Step 5: 348 + 87 = 435
Step 6: 435 + 87 = 522
Step 7: 522 + 87 = 609
Step 8: 609 + 87 = 696
Step 9: 696 + 87 = 783
Step 10: 783 + 87 = 870
Step 11: 870 + 87 = 957
Step 12: 957 + 87 = 1044
Step 13: 1044 + 87 = 1131
Step 14: 1131 + 87 = 1218
Step 15: 1218 + 87 = 1305
Step 16: 1305 + 87 = 1392
Step 17: 1392 + 87 = 1479
Step 18: 1479 + 87 = 1566
Step 19: 1566 + 87 = 1653
Step 20: 1653 + 87 = 1740
Step 21: 1740 + 87 = 1827
Step 22: 1827 + 87 = 1914
Step 23: 1914 + 87 = 2001
Step 24: 2001 + 87 = 2088
Step 25: 2088 + 87 = 2175
Step 26: 2175 + 87 = 2262
Step 27: 2262 + 87 = 2349
Step 28: 2349 + 87 = 2436
Step 29: 2436 + 87 = 2523
Step 30: 2523 + 87 = 2610
Step 31: 2610 + 87 = 2697
Step 32: 2697 + 87 = 2784
Step 33: 2784 + 87 = 2871
Step 34: 2871 + 87 = 2958
Step 35: 2958 + 87 = 3045
Step 36: 3045 + 87 = 3132
Step 37: 3132 + 87 = 3219
Step 38: 3219 + 87 = 3306
Step 39: 3306 + 87 = 3393
Step 40: 3393 + 87 = 3480
Step 41: 3480 + 87 = 3567
Step 42: 3567 + 87 = 3654
Step 43: 3654 + 87 = 3741
Step 44: 3741 + 87 = 3828
Step 45: 3828 + 87 = 3915
Step 46: 3915 + 87 = 4002
Step 47: 4002 + 87 = 4089
Step 48: 4089 + 87 = 4176
Step 49: 4176 + 87 = 4263
Step 50: 4263 + 87 = 4350
Step 51: 4350 + 87 = 4437
Step 52: 4437 + 87 = 4524
Step 53: 4524 + 87 = 4611
Step 54: 4611 + 87 = 4698

So, 87*54 = 4698