Sure thing, let's get straight to it. We start with 711 and we're going to multiply it by 15, which means adding 711 to itself 15 times.
Step 1: 0 + 711 = 711
Step 2: 711 + 711 = 1422
Step 3: 1422 + 711 = 2133
Step 4: 2133 + 711 = 2844
Step 5: 2844 + 711 = 3555
Step 6: 3555 + 711 = 4266
Step 7: 4266 + 711 = 4977
Step 8: 4977 + 711 = 5688
Step 9: 5688 + 711 = 6399
Step 10: 6399 + 711 = 7110
Step 11: 7110 + 711 = 7821
Step 12: 7821 + 711 = 8532
Step 13: 8532 + 711 = 9243
Step 14: 9243 + 711 = 9954
Step 15: 9954 + 711 = 10665

So, 711*15 = 10665