Alright, let's work through 79999803 times 17707361 step by step
79999803 × 17707361 = 17707361 × (79999803)
+ 17707361 × 3 what gives us 53122083
+ 17707361 × 00 that is equal 0
+ 17707361 × 800 what gives us 14165888800
+ 17707361 × 9000 giving us 159366249000
+ 17707361 × 90000 resulting in 1593662490000
+ 17707361 × 900000 which equals 15936624900000
+ 17707361 × 9000000 what gives us 159366249000000
+ 17707361 × 70000000 producing 1239515270000000

= 1416585391649883
