Alright, let's work through 80350064 times 16776361 step by step
80350064 × 16776361 = 16776361 × (80350064)
+ 16776361 × 4 producing 67105444
+ 16776361 × 60 that equals 1006581660
+ 16776361 × 000 that equals 0
+ 16776361 × 0000 producing 0
+ 16776361 × 50000 which equals 838818050000
+ 16776361 × 300000 resulting in 5032908300000
+ 16776361 × 0000000 yielding 0
+ 16776361 × 80000000 resulting in 1342108880000000

= 1347981680037104
