Alright, let's work through 2599 times 9646 step by step
2599 × 9646 = 9646 × (2599)
+ 9646 × 9 that equals 86814
+ 9646 × 90 producing 868140
+ 9646 × 500 which equals 4823000
+ 9646 × 2000 giving us 19292000

= 25069954
