Alright, let's work through 3423 times 5120 step by step
3423 × 5120 = 5120 × (3423)
+ 5120 × 3 resulting in 15360
+ 5120 × 20 what gives us 102400
+ 5120 × 400 that is equal 2048000
+ 5120 × 3000 giving us 15360000

= 17525760
