No problem, we've got 1642 and 5868 to multiply
1642 × 5868 = 5868 × (1642)
+ 5868 × 2 what gives us 11736
+ 5868 × 40 giving us 234720
+ 5868 × 600 that is equal 3520800
+ 5868 × 1000 giving us 5868000

= 9635256
