No problem, we've got 1307 and 6287 to multiply
1307 × 6287 = 6287 × (1307)
+ 6287 × 7 that is equal 44009
+ 6287 × 00 giving us 0
+ 6287 × 300 that equals 1886100
+ 6287 × 1000 resulting in 6287000

= 8217109
