OK, let's crack this. We're given 71 and our task is to multiply it by 11. Essentially, we'll be adding 71 to itself 11 times.
Step 1: 0 + 71 = 71
Step 2: 71 + 71 = 142
Step 3: 142 + 71 = 213
Step 4: 213 + 71 = 284
Step 5: 284 + 71 = 355
Step 6: 355 + 71 = 426
Step 7: 426 + 71 = 497
Step 8: 497 + 71 = 568
Step 9: 568 + 71 = 639
Step 10: 639 + 71 = 710
Step 11: 710 + 71 = 781

So, 71*11 = 781