No problem, we've got 4525 and 6393 to multiply
4525 × 6393 = 6393 × (4525)
+ 6393 × 5 resulting in 31965
+ 6393 × 20 what gives us 127860
+ 6393 × 500 giving us 3196500
+ 6393 × 4000 that equals 25572000

= 28928325
