Let's calculate 82425401 x 71382421
82425401 × 71382421 = 71382421 × (82425401)
+ 71382421 × 1 giving us 71382421
+ 71382421 × 00 that results in 0
+ 71382421 × 400 producing 28552968400
+ 71382421 × 5000 that is equal 356912105000
+ 71382421 × 20000 that is equal 1427648420000
+ 71382421 × 400000 resulting in 28552968400000
+ 71382421 × 2000000 which equals 142764842000000
+ 71382421 × 80000000 resulting in 5710593680000000

= 5883724675275821
