Alright, let's work through 8398 times 2153 step by step
8398 × 2153 = 2153 × (8398)
+ 2153 × 8 which equals 17224
+ 2153 × 90 resulting in 193770
+ 2153 × 300 that results in 645900
+ 2153 × 8000 resulting in 17224000

= 18080894
