Alright, let's work through 8478 times 2740 step by step
8478 × 2740 = 2740 × (8478)
+ 2740 × 8 resulting in 21920
+ 2740 × 70 that results in 191800
+ 2740 × 400 that is equal 1096000
+ 2740 × 8000 what gives us 21920000

= 23229720
