We're going to solve 5458 multiplied by 1280
5458 × 1280 = 1280 × (5458)
+ 1280 × 8 resulting in 10240
+ 1280 × 50 that is equal 64000
+ 1280 × 400 which equals 512000
+ 1280 × 5000 what gives us 6400000

= 6986240
