Alright, let's work through 7891 times 6429 step by step
7891 × 6429 = 6429 × (7891)
+ 6429 × 1 giving us 6429
+ 6429 × 90 resulting in 578610
+ 6429 × 800 what gives us 5143200
+ 6429 × 7000 resulting in 45003000

= 50731239
