No problem, we've got 1390 and 4468 to multiply
1390 × 4468 = 4468 × (1390)
+ 4468 × 0 that is equal 0
+ 4468 × 90 giving us 402120
+ 4468 × 300 what gives us 1340400
+ 4468 × 1000 producing 4468000

= 6210520
