Alright, let's work through 8344 times 2603 step by step
8344 × 2603 = 2603 × (8344)
+ 2603 × 4 resulting in 10412
+ 2603 × 40 resulting in 104120
+ 2603 × 300 which equals 780900
+ 2603 × 8000 which equals 20824000

= 21719432
