Alright, let's work through 2599 times 7888 step by step
2599 × 7888 = 7888 × (2599)
+ 7888 × 9 yielding 70992
+ 7888 × 90 resulting in 709920
+ 7888 × 500 what gives us 3944000
+ 7888 × 2000 what gives us 15776000

= 20500912
