Alright, let's work through 83204017 times 54289012 step by step
83204017 × 54289012 = 54289012 × (83204017)
+ 54289012 × 7 resulting in 380023084
+ 54289012 × 10 resulting in 542890120
+ 54289012 × 000 which equals 0
+ 54289012 × 4000 giving us 217156048000
+ 54289012 × 00000 that is equal 0
+ 54289012 × 200000 resulting in 10857802400000
+ 54289012 × 3000000 that results in 162867036000000
+ 54289012 × 80000000 which equals 4343120960000000

= 4517063877361204
