No problem, we've got 6347 and 1420 to multiply
6347 × 1420 = 1420 × (6347)
+ 1420 × 7 producing 9940
+ 1420 × 40 what gives us 56800
+ 1420 × 300 resulting in 426000
+ 1420 × 6000 giving us 8520000

= 9012740
