Alright, let's work through 80807978 times 46788276 step by step
80807978 × 46788276 = 46788276 × (80807978)
+ 46788276 × 8 that is equal 374306208
+ 46788276 × 70 that results in 3275179320
+ 46788276 × 900 giving us 42109448400
+ 46788276 × 7000 that is equal 327517932000
+ 46788276 × 00000 that is equal 0
+ 46788276 × 800000 giving us 37430620800000
+ 46788276 × 0000000 giving us 0
+ 46788276 × 80000000 giving us 3743062080000000

= 3780865977665928
