Sure thing! We've got 30 and we're gonna multiply it by 9. That's the same as adding 30 to itself 9 times.
Step 1: 0 + 30 = 30
Step 2: 30 + 30 = 60
Step 3: 60 + 30 = 90
Step 4: 90 + 30 = 120
Step 5: 120 + 30 = 150
Step 6: 150 + 30 = 180
Step 7: 180 + 30 = 210
Step 8: 210 + 30 = 240
Step 9: 240 + 30 = 270

So, 30*9 = 270