No problem, we've got 3063 and 6391 to multiply
3063 × 6391 = 6391 × (3063)
+ 6391 × 3 what gives us 19173
+ 6391 × 60 that equals 383460
+ 6391 × 000 that equals 0
+ 6391 × 3000 yielding 19173000

= 19575633
