No problem, we've got 4069 and 6401 to multiply
4069 × 6401 = 6401 × (4069)
+ 6401 × 9 that equals 57609
+ 6401 × 60 giving us 384060
+ 6401 × 000 what gives us 0
+ 6401 × 4000 which equals 25604000

= 26045669
