Let's roll up our sleeves and solve this. We have 54 and we're going to multiply it by 28, essentially adding 54 to itself 28 times.
Step 1: 0 + 54 = 54
Step 2: 54 + 54 = 108
Step 3: 108 + 54 = 162
Step 4: 162 + 54 = 216
Step 5: 216 + 54 = 270
Step 6: 270 + 54 = 324
Step 7: 324 + 54 = 378
Step 8: 378 + 54 = 432
Step 9: 432 + 54 = 486
Step 10: 486 + 54 = 540
Step 11: 540 + 54 = 594
Step 12: 594 + 54 = 648
Step 13: 648 + 54 = 702
Step 14: 702 + 54 = 756
Step 15: 756 + 54 = 810
Step 16: 810 + 54 = 864
Step 17: 864 + 54 = 918
Step 18: 918 + 54 = 972
Step 19: 972 + 54 = 1026
Step 20: 1026 + 54 = 1080
Step 21: 1080 + 54 = 1134
Step 22: 1134 + 54 = 1188
Step 23: 1188 + 54 = 1242
Step 24: 1242 + 54 = 1296
Step 25: 1296 + 54 = 1350
Step 26: 1350 + 54 = 1404
Step 27: 1404 + 54 = 1458
Step 28: 1458 + 54 = 1512

So, 54*28 = 1512