Alright, let's work through 80665012 times 28984928 step by step
80665012 × 28984928 = 28984928 × (80665012)
+ 28984928 × 2 producing 57969856
+ 28984928 × 10 producing 289849280
+ 28984928 × 000 giving us 0
+ 28984928 × 5000 what gives us 144924640000
+ 28984928 × 60000 which equals 1739095680000
+ 28984928 × 600000 which equals 17390956800000
+ 28984928 × 0000000 giving us 0
+ 28984928 × 80000000 that results in 2318794240000000

= 2338069564939136
