Alright, let's work through 8389 times 7543 step by step
8389 × 7543 = 7543 × (8389)
+ 7543 × 9 producing 67887
+ 7543 × 80 resulting in 603440
+ 7543 × 300 that is equal 2262900
+ 7543 × 8000 that results in 60344000

= 63278227
