Sure thing! We've got 203 and we're gonna multiply it by 13. That's the same as adding 203 to itself 13 times.
Step 1: 0 + 203 = 203
Step 2: 203 + 203 = 406
Step 3: 406 + 203 = 609
Step 4: 609 + 203 = 812
Step 5: 812 + 203 = 1015
Step 6: 1015 + 203 = 1218
Step 7: 1218 + 203 = 1421
Step 8: 1421 + 203 = 1624
Step 9: 1624 + 203 = 1827
Step 10: 1827 + 203 = 2030
Step 11: 2030 + 203 = 2233
Step 12: 2233 + 203 = 2436
Step 13: 2436 + 203 = 2639

So, 203*13 = 2639