Alright, let's work through 3951 times 7766 step by step
3951 × 7766 = 7766 × (3951)
+ 7766 × 1 resulting in 7766
+ 7766 × 50 which equals 388300
+ 7766 × 900 that is equal 6989400
+ 7766 × 3000 that equals 23298000

= 30683466
