Alright, let's work through 64530845 times 78671008 step by step
64530845 × 78671008 = 78671008 × (64530845)
+ 78671008 × 5 resulting in 393355040
+ 78671008 × 40 that is equal 3146840320
+ 78671008 × 800 resulting in 62936806400
+ 78671008 × 0000 which equals 0
+ 78671008 × 30000 giving us 2360130240000
+ 78671008 × 500000 that equals 39335504000000
+ 78671008 × 4000000 which equals 314684032000000
+ 78671008 × 60000000 that results in 4720260480000000

= 5076706623241760
