Alright, let's solve this math problem step by step. First, we have the number 606. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 25. So, we're going to take the number 606 and add it to itself 25 times.
Step 1: 0 + 606 = 606
Step 2: 606 + 606 = 1212
Step 3: 1212 + 606 = 1818
Step 4: 1818 + 606 = 2424
Step 5: 2424 + 606 = 3030
Step 6: 3030 + 606 = 3636
Step 7: 3636 + 606 = 4242
Step 8: 4242 + 606 = 4848
Step 9: 4848 + 606 = 5454
Step 10: 5454 + 606 = 6060
Step 11: 6060 + 606 = 6666
Step 12: 6666 + 606 = 7272
Step 13: 7272 + 606 = 7878
Step 14: 7878 + 606 = 8484
Step 15: 8484 + 606 = 9090
Step 16: 9090 + 606 = 9696
Step 17: 9696 + 606 = 10302
Step 18: 10302 + 606 = 10908
Step 19: 10908 + 606 = 11514
Step 20: 11514 + 606 = 12120
Step 21: 12120 + 606 = 12726
Step 22: 12726 + 606 = 13332
Step 23: 13332 + 606 = 13938
Step 24: 13938 + 606 = 14544
Step 25: 14544 + 606 = 15150

So, 606*25 = 15150