Alright, let's work through 83798058 times 87973503 step by step
83798058 × 87973503 = 87973503 × (83798058)
+ 87973503 × 8 which equals 703788024
+ 87973503 × 50 producing 4398675150
+ 87973503 × 000 producing 0
+ 87973503 × 8000 that equals 703788024000
+ 87973503 × 90000 giving us 7917615270000
+ 87973503 × 700000 producing 61581452100000
+ 87973503 × 3000000 producing 263920509000000
+ 87973503 × 80000000 yielding 7037880240000000

= 7372008706857174
