Alright, let's work through 8089 times 8159 step by step
8089 × 8159 = 8159 × (8089)
+ 8159 × 9 yielding 73431
+ 8159 × 80 what gives us 652720
+ 8159 × 000 that equals 0
+ 8159 × 8000 producing 65272000

= 65998151
