OK, let's crack this. We're given 403 and our task is to multiply it by 14. Essentially, we'll be adding 403 to itself 14 times.
Step 1: 0 + 403 = 403
Step 2: 403 + 403 = 806
Step 3: 806 + 403 = 1209
Step 4: 1209 + 403 = 1612
Step 5: 1612 + 403 = 2015
Step 6: 2015 + 403 = 2418
Step 7: 2418 + 403 = 2821
Step 8: 2821 + 403 = 3224
Step 9: 3224 + 403 = 3627
Step 10: 3627 + 403 = 4030
Step 11: 4030 + 403 = 4433
Step 12: 4433 + 403 = 4836
Step 13: 4836 + 403 = 5239
Step 14: 5239 + 403 = 5642

So, 403*14 = 5642