No problem, we've got 1656 and 3404 to multiply
1656 × 3404 = 3404 × (1656)
+ 3404 × 6 giving us 20424
+ 3404 × 50 what gives us 170200
+ 3404 × 600 giving us 2042400
+ 3404 × 1000 producing 3404000

= 5637024
