Alright, let's solve this math problem step by step. First, we have the number 630. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 10. So, we're going to take the number 630 and add it to itself 10 times.
Step 1: 0 + 630 = 630
Step 2: 630 + 630 = 1260
Step 3: 1260 + 630 = 1890
Step 4: 1890 + 630 = 2520
Step 5: 2520 + 630 = 3150
Step 6: 3150 + 630 = 3780
Step 7: 3780 + 630 = 4410
Step 8: 4410 + 630 = 5040
Step 9: 5040 + 630 = 5670
Step 10: 5670 + 630 = 6300

So, 630*10 = 6300