Alright, let's work through 2561 times 9959 step by step
2561 × 9959 = 9959 × (2561)
+ 9959 × 1 giving us 9959
+ 9959 × 60 that equals 597540
+ 9959 × 500 that is equal 4979500
+ 9959 × 2000 resulting in 19918000

= 25504999
