Alright, let's work through 40176903 times 78311891 step by step
40176903 × 78311891 = 78311891 × (40176903)
+ 78311891 × 3 resulting in 234935673
+ 78311891 × 00 yielding 0
+ 78311891 × 900 that is equal 70480701900
+ 78311891 × 6000 giving us 469871346000
+ 78311891 × 70000 what gives us 5481832370000
+ 78311891 × 100000 resulting in 7831189100000
+ 78311891 × 0000000 that equals 0
+ 78311891 × 40000000 that equals 3132475640000000

= 3146329248453573
