Alright, let's work through 38749894 times 64323099 step by step
38749894 × 64323099 = 64323099 × (38749894)
+ 64323099 × 4 that is equal 257292396
+ 64323099 × 90 resulting in 5789078910
+ 64323099 × 800 that is equal 51458479200
+ 64323099 × 9000 producing 578907891000
+ 64323099 × 40000 that results in 2572923960000
+ 64323099 × 700000 yielding 45026169300000
+ 64323099 × 8000000 producing 514584792000000
+ 64323099 × 30000000 what gives us 1929692970000000

= 2492513268001506
