Alright, let's work through 8391 times 5244 step by step
8391 × 5244 = 5244 × (8391)
+ 5244 × 1 which equals 5244
+ 5244 × 90 resulting in 471960
+ 5244 × 300 that is equal 1573200
+ 5244 × 8000 that is equal 41952000

= 44002404
