OK, let's work through this together. We're starting with 474 and we're going to multiply it by 15, which means we add 474 to itself 15 times.
Step 1: 0 + 474 = 474
Step 2: 474 + 474 = 948
Step 3: 948 + 474 = 1422
Step 4: 1422 + 474 = 1896
Step 5: 1896 + 474 = 2370
Step 6: 2370 + 474 = 2844
Step 7: 2844 + 474 = 3318
Step 8: 3318 + 474 = 3792
Step 9: 3792 + 474 = 4266
Step 10: 4266 + 474 = 4740
Step 11: 4740 + 474 = 5214
Step 12: 5214 + 474 = 5688
Step 13: 5688 + 474 = 6162
Step 14: 6162 + 474 = 6636
Step 15: 6636 + 474 = 7110

So, 474*15 = 7110