No problem, we've got 6458 and 2428 to multiply
6458 × 2428 = 2428 × (6458)
+ 2428 × 8 giving us 19424
+ 2428 × 50 that equals 121400
+ 2428 × 400 producing 971200
+ 2428 × 6000 that is equal 14568000

= 15680024
