Alright, let's solve this math problem step by step. First, we have the number 948. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 15. So, we're going to take the number 948 and add it to itself 15 times.
Step 1: 0 + 948 = 948
Step 2: 948 + 948 = 1896
Step 3: 1896 + 948 = 2844
Step 4: 2844 + 948 = 3792
Step 5: 3792 + 948 = 4740
Step 6: 4740 + 948 = 5688
Step 7: 5688 + 948 = 6636
Step 8: 6636 + 948 = 7584
Step 9: 7584 + 948 = 8532
Step 10: 8532 + 948 = 9480
Step 11: 9480 + 948 = 10428
Step 12: 10428 + 948 = 11376
Step 13: 11376 + 948 = 12324
Step 14: 12324 + 948 = 13272
Step 15: 13272 + 948 = 14220

So, 948*15 = 14220