No problem, we've got 6345 and 3407 to multiply
6345 × 3407 = 3407 × (6345)
+ 3407 × 5 resulting in 17035
+ 3407 × 40 that equals 136280
+ 3407 × 300 yielding 1022100
+ 3407 × 6000 that results in 20442000

= 21617415
