Alright, let's work through 3057 times 3910 step by step
3057 × 3910 = 3910 × (3057)
+ 3910 × 7 which equals 27370
+ 3910 × 50 that results in 195500
+ 3910 × 000 yielding 0
+ 3910 × 3000 which equals 11730000

= 11952870
