No problem, we've got 6397 and 3789 to multiply
6397 × 3789 = 3789 × (6397)
+ 3789 × 7 what gives us 26523
+ 3789 × 90 what gives us 341010
+ 3789 × 300 yielding 1136700
+ 3789 × 6000 that results in 22734000

= 24238233
