Alright, let's work through 47778229 times 78838512 step by step
47778229 × 78838512 = 78838512 × (47778229)
+ 78838512 × 9 what gives us 709546608
+ 78838512 × 20 that equals 1576770240
+ 78838512 × 200 which equals 15767702400
+ 78838512 × 8000 giving us 630708096000
+ 78838512 × 70000 that is equal 5518695840000
+ 78838512 × 700000 resulting in 55186958400000
+ 78838512 × 7000000 which equals 551869584000000
+ 78838512 × 40000000 that results in 3153540480000000

= 3766764480355248
