No problem, we've got 6315 and 3423 to multiply
6315 × 3423 = 3423 × (6315)
+ 3423 × 5 resulting in 17115
+ 3423 × 10 giving us 34230
+ 3423 × 300 yielding 1026900
+ 3423 × 6000 resulting in 20538000

= 21616245
