Alright, let's work through 38904579 times 86997645 step by step
38904579 × 86997645 = 86997645 × (38904579)
+ 86997645 × 9 that is equal 782978805
+ 86997645 × 70 that equals 6089835150
+ 86997645 × 500 that equals 43498822500
+ 86997645 × 4000 giving us 347990580000
+ 86997645 × 00000 that equals 0
+ 86997645 × 900000 which equals 78297880500000
+ 86997645 × 8000000 that equals 695981160000000
+ 86997645 × 30000000 producing 2609929350000000

= 3384606752716455
