No problem, we've got 6342 and 3138 to multiply
6342 × 3138 = 3138 × (6342)
+ 3138 × 2 which equals 6276
+ 3138 × 40 giving us 125520
+ 3138 × 300 yielding 941400
+ 3138 × 6000 yielding 18828000

= 19901196
