Alright, let's work through 2878 times 451 step by step
2878 × 451 = 451 × (2878)
+ 451 × 8 yielding 3608
+ 451 × 70 which equals 31570
+ 451 × 800 resulting in 360800
+ 451 × 2000 resulting in 902000

= 1297978
