Alright, let's work through 9159 times 71 step by step
9159 × 71 = 71 × (9159)
+ 71 × 9 that is equal 639
+ 71 × 50 producing 3550
+ 71 × 100 that is equal 7100
+ 71 × 9000 which equals 639000

= 650289
