Alright, let's work through 6389 times 8395 step by step
6389 × 8395 = 8395 × (6389)
+ 8395 × 9 which equals 75555
+ 8395 × 80 what gives us 671600
+ 8395 × 300 which equals 2518500
+ 8395 × 6000 resulting in 50370000

= 53635655
