Sure thing, let's get straight to it. We start with 605 and we're going to multiply it by 18, which means adding 605 to itself 18 times.
Step 1: 0 + 605 = 605
Step 2: 605 + 605 = 1210
Step 3: 1210 + 605 = 1815
Step 4: 1815 + 605 = 2420
Step 5: 2420 + 605 = 3025
Step 6: 3025 + 605 = 3630
Step 7: 3630 + 605 = 4235
Step 8: 4235 + 605 = 4840
Step 9: 4840 + 605 = 5445
Step 10: 5445 + 605 = 6050
Step 11: 6050 + 605 = 6655
Step 12: 6655 + 605 = 7260
Step 13: 7260 + 605 = 7865
Step 14: 7865 + 605 = 8470
Step 15: 8470 + 605 = 9075
Step 16: 9075 + 605 = 9680
Step 17: 9680 + 605 = 10285
Step 18: 10285 + 605 = 10890

So, 605*18 = 10890