Alright, let's work through 1581 times 6137 step by step
1581 × 6137 = 6137 × (1581)
+ 6137 × 1 resulting in 6137
+ 6137 × 80 giving us 490960
+ 6137 × 500 producing 3068500
+ 6137 × 1000 giving us 6137000

= 9702597
