Alright, let's work through 4971 times 2866 step by step
4971 × 2866 = 2866 × (4971)
+ 2866 × 1 that results in 2866
+ 2866 × 70 that results in 200620
+ 2866 × 900 producing 2579400
+ 2866 × 4000 what gives us 11464000

= 14246886
