Without delay, let's solve this. We've got 435 and we will be multiplying it by 18, that is, adding 435 to itself 18 times.
Step 1: 0 + 435 = 435
Step 2: 435 + 435 = 870
Step 3: 870 + 435 = 1305
Step 4: 1305 + 435 = 1740
Step 5: 1740 + 435 = 2175
Step 6: 2175 + 435 = 2610
Step 7: 2610 + 435 = 3045
Step 8: 3045 + 435 = 3480
Step 9: 3480 + 435 = 3915
Step 10: 3915 + 435 = 4350
Step 11: 4350 + 435 = 4785
Step 12: 4785 + 435 = 5220
Step 13: 5220 + 435 = 5655
Step 14: 5655 + 435 = 6090
Step 15: 6090 + 435 = 6525
Step 16: 6525 + 435 = 6960
Step 17: 6960 + 435 = 7395
Step 18: 7395 + 435 = 7830

So, 435*18 = 7830