Alright, let's work through 8359 times 8619 step by step
8359 × 8619 = 8619 × (8359)
+ 8619 × 9 which equals 77571
+ 8619 × 50 producing 430950
+ 8619 × 300 which equals 2585700
+ 8619 × 8000 yielding 68952000

= 72046221
