Sure thing! We've got 212 and we're gonna multiply it by 18. That's the same as adding 212 to itself 18 times.
Step 1: 0 + 212 = 212
Step 2: 212 + 212 = 424
Step 3: 424 + 212 = 636
Step 4: 636 + 212 = 848
Step 5: 848 + 212 = 1060
Step 6: 1060 + 212 = 1272
Step 7: 1272 + 212 = 1484
Step 8: 1484 + 212 = 1696
Step 9: 1696 + 212 = 1908
Step 10: 1908 + 212 = 2120
Step 11: 2120 + 212 = 2332
Step 12: 2332 + 212 = 2544
Step 13: 2544 + 212 = 2756
Step 14: 2756 + 212 = 2968
Step 15: 2968 + 212 = 3180
Step 16: 3180 + 212 = 3392
Step 17: 3392 + 212 = 3604
Step 18: 3604 + 212 = 3816

So, 212*18 = 3816