Alright, let's work through 38934840 times 79928349 step by step
38934840 × 79928349 = 79928349 × (38934840)
+ 79928349 × 0 what gives us 0
+ 79928349 × 40 which equals 3197133960
+ 79928349 × 800 giving us 63942679200
+ 79928349 × 4000 giving us 319713396000
+ 79928349 × 30000 giving us 2397850470000
+ 79928349 × 900000 yielding 71935514100000
+ 79928349 × 8000000 giving us 639426792000000
+ 79928349 × 30000000 that equals 2397850470000000

= 3111997479779160
