Sure thing! We've got 203 and we're gonna multiply it by 7. That's the same as adding 203 to itself 7 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

So, 203*7 = 1421