Alright, let's work through 8389 times 5163 step by step
8389 × 5163 = 5163 × (8389)
+ 5163 × 9 that equals 46467
+ 5163 × 80 that is equal 413040
+ 5163 × 300 that is equal 1548900
+ 5163 × 8000 which equals 41304000

= 43312407
