Alright, let's work through 77767080 times 49962018 step by step
77767080 × 49962018 = 49962018 × (77767080)
+ 49962018 × 0 giving us 0
+ 49962018 × 80 giving us 3996961440
+ 49962018 × 000 resulting in 0
+ 49962018 × 7000 that is equal 349734126000
+ 49962018 × 60000 that equals 2997721080000
+ 49962018 × 700000 which equals 34973412600000
+ 49962018 × 7000000 which equals 349734126000000
+ 49962018 × 70000000 producing 3497341260000000

= 3885400250767440
