No problem, we've got 6394 and 3438 to multiply
6394 × 3438 = 3438 × (6394)
+ 3438 × 4 resulting in 13752
+ 3438 × 90 which equals 309420
+ 3438 × 300 giving us 1031400
+ 3438 × 6000 which equals 20628000

= 21982572
