Alright, let's work through 82442509 times 64471678 step by step
82442509 × 64471678 = 64471678 × (82442509)
+ 64471678 × 9 yielding 580245102
+ 64471678 × 00 resulting in 0
+ 64471678 × 500 giving us 32235839000
+ 64471678 × 2000 that is equal 128943356000
+ 64471678 × 40000 that equals 2578867120000
+ 64471678 × 400000 that results in 25788671200000
+ 64471678 × 2000000 yielding 128943356000000
+ 64471678 × 80000000 giving us 5157734240000000

= 5315206893760102
