Alright, let's work through 39255389 times 18137698 step by step
39255389 × 18137698 = 18137698 × (39255389)
+ 18137698 × 9 what gives us 163239282
+ 18137698 × 80 producing 1451015840
+ 18137698 × 300 resulting in 5441309400
+ 18137698 × 5000 that results in 90688490000
+ 18137698 × 50000 resulting in 906884900000
+ 18137698 × 200000 that equals 3627539600000
+ 18137698 × 9000000 that is equal 163239282000000
+ 18137698 × 30000000 that equals 544130940000000

= 712002390554522
