Alright, let's work through 84343398 times 47491392 step by step
84343398 × 47491392 = 47491392 × (84343398)
+ 47491392 × 8 that results in 379931136
+ 47491392 × 90 producing 4274225280
+ 47491392 × 300 producing 14247417600
+ 47491392 × 3000 which equals 142474176000
+ 47491392 × 40000 that results in 1899655680000
+ 47491392 × 300000 resulting in 14247417600000
+ 47491392 × 4000000 yielding 189965568000000
+ 47491392 × 80000000 what gives us 3799311360000000

= 4005585377030016
