Alright, let's solve this math problem step by step. First, we have the number 717. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 18. So, we're going to take the number 717 and add it to itself 18 times.
Step 1: 0 + 717 = 717
Step 2: 717 + 717 = 1434
Step 3: 1434 + 717 = 2151
Step 4: 2151 + 717 = 2868
Step 5: 2868 + 717 = 3585
Step 6: 3585 + 717 = 4302
Step 7: 4302 + 717 = 5019
Step 8: 5019 + 717 = 5736
Step 9: 5736 + 717 = 6453
Step 10: 6453 + 717 = 7170
Step 11: 7170 + 717 = 7887
Step 12: 7887 + 717 = 8604
Step 13: 8604 + 717 = 9321
Step 14: 9321 + 717 = 10038
Step 15: 10038 + 717 = 10755
Step 16: 10755 + 717 = 11472
Step 17: 11472 + 717 = 12189
Step 18: 12189 + 717 = 12906

So, 717*18 = 12906