OK, let's crack this. We're given 430 and our task is to multiply it by 10. Essentially, we'll be adding 430 to itself 10 times.
Step 1: 0 + 430 = 430
Step 2: 430 + 430 = 860
Step 3: 860 + 430 = 1290
Step 4: 1290 + 430 = 1720
Step 5: 1720 + 430 = 2150
Step 6: 2150 + 430 = 2580
Step 7: 2580 + 430 = 3010
Step 8: 3010 + 430 = 3440
Step 9: 3440 + 430 = 3870
Step 10: 3870 + 430 = 4300

So, 430*10 = 4300