Alright, let's work through 8181 times 2597 step by step
8181 × 2597 = 2597 × (8181)
+ 2597 × 1 resulting in 2597
+ 2597 × 80 resulting in 207760
+ 2597 × 100 giving us 259700
+ 2597 × 8000 which equals 20776000

= 21246057
