Alright, let's work through 7858 times 6631 step by step
7858 × 6631 = 6631 × (7858)
+ 6631 × 8 giving us 53048
+ 6631 × 50 resulting in 331550
+ 6631 × 800 that is equal 5304800
+ 6631 × 7000 giving us 46417000

= 52106398
