Alright, let's work through 83839390 times 59487941 step by step
83839390 × 59487941 = 59487941 × (83839390)
+ 59487941 × 0 producing 0
+ 59487941 × 90 that is equal 5353914690
+ 59487941 × 300 yielding 17846382300
+ 59487941 × 9000 that results in 535391469000
+ 59487941 × 30000 that results in 1784638230000
+ 59487941 × 800000 resulting in 47590352800000
+ 59487941 × 3000000 producing 178463823000000
+ 59487941 × 80000000 yielding 4759035280000000

= 4987432685795990
