No problem, we've got 6361 and 2498 to multiply
6361 × 2498 = 2498 × (6361)
+ 2498 × 1 giving us 2498
+ 2498 × 60 which equals 149880
+ 2498 × 300 what gives us 749400
+ 2498 × 6000 yielding 14988000

= 15889778
