We're going to solve 6424 multiplied by 6340
6424 × 6340 = 6340 × (6424)
+ 6340 × 4 that equals 25360
+ 6340 × 20 which equals 126800
+ 6340 × 400 resulting in 2536000
+ 6340 × 6000 which equals 38040000

= 40728160
