We're going to solve 6420 multiplied by 6449
6420 × 6449 = 6449 × (6420)
+ 6449 × 0 resulting in 0
+ 6449 × 20 producing 128980
+ 6449 × 400 which equals 2579600
+ 6449 × 6000 resulting in 38694000

= 41402580
