Alright, let's work through 78816204 times 18455876 step by step
78816204 × 18455876 = 18455876 × (78816204)
+ 18455876 × 4 that equals 73823504
+ 18455876 × 00 producing 0
+ 18455876 × 200 resulting in 3691175200
+ 18455876 × 6000 that is equal 110735256000
+ 18455876 × 10000 resulting in 184558760000
+ 18455876 × 800000 that equals 14764700800000
+ 18455876 × 8000000 resulting in 147647008000000
+ 18455876 × 70000000 producing 1291911320000000

= 1454622087814704
