Alright, let's work through 83052039 times 53887563 step by step
83052039 × 53887563 = 53887563 × (83052039)
+ 53887563 × 9 yielding 484988067
+ 53887563 × 30 producing 1616626890
+ 53887563 × 000 resulting in 0
+ 53887563 × 2000 producing 107775126000
+ 53887563 × 50000 resulting in 2694378150000
+ 53887563 × 000000 producing 0
+ 53887563 × 3000000 producing 161662689000000
+ 53887563 × 80000000 that equals 4311005040000000

= 4475471983890957
