No problem, we've got 6397 and 2573 to multiply
6397 × 2573 = 2573 × (6397)
+ 2573 × 7 that results in 18011
+ 2573 × 90 that equals 231570
+ 2573 × 300 producing 771900
+ 2573 × 6000 resulting in 15438000

= 16459481
