Let's get this math done. We have 762 and we're going to multiply it by 28. This is the same as taking 762 and adding it to itself 28 times.
Step 1: 0 + 762 = 762
Step 2: 762 + 762 = 1524
Step 3: 1524 + 762 = 2286
Step 4: 2286 + 762 = 3048
Step 5: 3048 + 762 = 3810
Step 6: 3810 + 762 = 4572
Step 7: 4572 + 762 = 5334
Step 8: 5334 + 762 = 6096
Step 9: 6096 + 762 = 6858
Step 10: 6858 + 762 = 7620
Step 11: 7620 + 762 = 8382
Step 12: 8382 + 762 = 9144
Step 13: 9144 + 762 = 9906
Step 14: 9906 + 762 = 10668
Step 15: 10668 + 762 = 11430
Step 16: 11430 + 762 = 12192
Step 17: 12192 + 762 = 12954
Step 18: 12954 + 762 = 13716
Step 19: 13716 + 762 = 14478
Step 20: 14478 + 762 = 15240
Step 21: 15240 + 762 = 16002
Step 22: 16002 + 762 = 16764
Step 23: 16764 + 762 = 17526
Step 24: 17526 + 762 = 18288
Step 25: 18288 + 762 = 19050
Step 26: 19050 + 762 = 19812
Step 27: 19812 + 762 = 20574
Step 28: 20574 + 762 = 21336

So, 762*28 = 21336