Alright, let's work through 83530749 times 80996255 step by step
83530749 × 80996255 = 80996255 × (83530749)
+ 80996255 × 9 which equals 728966295
+ 80996255 × 40 giving us 3239850200
+ 80996255 × 700 what gives us 56697378500
+ 80996255 × 0000 resulting in 0
+ 80996255 × 30000 that results in 2429887650000
+ 80996255 × 500000 producing 40498127500000
+ 80996255 × 3000000 that results in 242988765000000
+ 80996255 × 80000000 which equals 6479700400000000

= 6765677846344995
