Alright, let's work through 78777639 times 36477708 step by step
78777639 × 36477708 = 36477708 × (78777639)
+ 36477708 × 9 which equals 328299372
+ 36477708 × 30 which equals 1094331240
+ 36477708 × 600 which equals 21886624800
+ 36477708 × 7000 producing 255343956000
+ 36477708 × 70000 that is equal 2553439560000
+ 36477708 × 700000 that results in 25534395600000
+ 36477708 × 8000000 producing 291821664000000
+ 36477708 × 70000000 resulting in 2553439560000000

= 2873627712371412
