No problem, we've got 6392 and 4329 to multiply
6392 × 4329 = 4329 × (6392)
+ 4329 × 2 what gives us 8658
+ 4329 × 90 giving us 389610
+ 4329 × 300 which equals 1298700
+ 4329 × 6000 what gives us 25974000

= 27670968
