Sure thing! We've got 487 and we're gonna multiply it by 28. That's the same as adding 487 to itself 28 times.
Step 1: 0 + 487 = 487
Step 2: 487 + 487 = 974
Step 3: 974 + 487 = 1461
Step 4: 1461 + 487 = 1948
Step 5: 1948 + 487 = 2435
Step 6: 2435 + 487 = 2922
Step 7: 2922 + 487 = 3409
Step 8: 3409 + 487 = 3896
Step 9: 3896 + 487 = 4383
Step 10: 4383 + 487 = 4870
Step 11: 4870 + 487 = 5357
Step 12: 5357 + 487 = 5844
Step 13: 5844 + 487 = 6331
Step 14: 6331 + 487 = 6818
Step 15: 6818 + 487 = 7305
Step 16: 7305 + 487 = 7792
Step 17: 7792 + 487 = 8279
Step 18: 8279 + 487 = 8766
Step 19: 8766 + 487 = 9253
Step 20: 9253 + 487 = 9740
Step 21: 9740 + 487 = 10227
Step 22: 10227 + 487 = 10714
Step 23: 10714 + 487 = 11201
Step 24: 11201 + 487 = 11688
Step 25: 11688 + 487 = 12175
Step 26: 12175 + 487 = 12662
Step 27: 12662 + 487 = 13149
Step 28: 13149 + 487 = 13636

So, 487*28 = 13636