Alright, let's work through 2789 times 3678 step by step
2789 × 3678 = 3678 × (2789)
+ 3678 × 9 giving us 33102
+ 3678 × 80 that results in 294240
+ 3678 × 700 that equals 2574600
+ 3678 × 2000 resulting in 7356000

= 10257942
