Alright, let's work through 80224844 times 78723244 step by step
80224844 × 78723244 = 78723244 × (80224844)
+ 78723244 × 4 that is equal 314892976
+ 78723244 × 40 that equals 3148929760
+ 78723244 × 800 that is equal 62978595200
+ 78723244 × 4000 which equals 314892976000
+ 78723244 × 20000 producing 1574464880000
+ 78723244 × 200000 producing 15744648800000
+ 78723244 × 0000000 that is equal 0
+ 78723244 × 80000000 which equals 6297859520000000

= 6315559969073936
