Alright, let's work through 8619 times 2131 step by step
8619 × 2131 = 2131 × (8619)
+ 2131 × 9 which equals 19179
+ 2131 × 10 what gives us 21310
+ 2131 × 600 resulting in 1278600
+ 2131 × 8000 yielding 17048000

= 18367089
