No problem, we've got 3491 and 6370 to multiply
3491 × 6370 = 6370 × (3491)
+ 6370 × 1 that equals 6370
+ 6370 × 90 producing 573300
+ 6370 × 400 yielding 2548000
+ 6370 × 3000 producing 19110000

= 22237670
