Alright, let's work through 81929555 times 41756555 step by step
81929555 × 41756555 = 41756555 × (81929555)
+ 41756555 × 5 producing 208782775
+ 41756555 × 50 which equals 2087827750
+ 41756555 × 500 that equals 20878277500
+ 41756555 × 9000 that equals 375808995000
+ 41756555 × 20000 that results in 835131100000
+ 41756555 × 900000 which equals 37580899500000
+ 41756555 × 1000000 which equals 41756555000000
+ 41756555 × 80000000 which equals 3340524400000000

= 3421095969483025
