Alright, let's work through 3457 times 7789 step by step
3457 × 7789 = 7789 × (3457)
+ 7789 × 7 what gives us 54523
+ 7789 × 50 resulting in 389450
+ 7789 × 400 which equals 3115600
+ 7789 × 3000 that is equal 23367000

= 26926573
