Alright, let's solve this math problem step by step. First, we have the number 170. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 9. So, we're going to take the number 170 and add it to itself 9 times.
Step 1: 0 + 170 = 170
Step 2: 170 + 170 = 340
Step 3: 340 + 170 = 510
Step 4: 510 + 170 = 680
Step 5: 680 + 170 = 850
Step 6: 850 + 170 = 1020
Step 7: 1020 + 170 = 1190
Step 8: 1190 + 170 = 1360
Step 9: 1360 + 170 = 1530

So, 170*9 = 1530