Alright, let's work through 82978365 times 99938835 step by step
82978365 × 99938835 = 99938835 × (82978365)
+ 99938835 × 5 which equals 499694175
+ 99938835 × 60 yielding 5996330100
+ 99938835 × 300 that results in 29981650500
+ 99938835 × 8000 producing 799510680000
+ 99938835 × 70000 giving us 6995718450000
+ 99938835 × 900000 which equals 89944951500000
+ 99938835 × 2000000 resulting in 199877670000000
+ 99938835 × 80000000 what gives us 7995106800000000

= 8292761128304775
