Alright, let's work through 80779977 times 2005755 step by step
80779977 × 2005755 = 2005755 × (80779977)
+ 2005755 × 7 resulting in 14040285
+ 2005755 × 70 which equals 140402850
+ 2005755 × 900 resulting in 1805179500
+ 2005755 × 9000 what gives us 18051795000
+ 2005755 × 70000 resulting in 140402850000
+ 2005755 × 700000 that equals 1404028500000
+ 2005755 × 0000000 yielding 0
+ 2005755 × 80000000 which equals 160460400000000

= 162024842767635
