Alright, let's work through 99873572 times 38344349 step by step
99873572 × 38344349 = 38344349 × (99873572)
+ 38344349 × 2 that is equal 76688698
+ 38344349 × 70 that is equal 2684104430
+ 38344349 × 500 what gives us 19172174500
+ 38344349 × 3000 that equals 115033047000
+ 38344349 × 70000 producing 2684104430000
+ 38344349 × 800000 that results in 30675479200000
+ 38344349 × 9000000 producing 345099141000000
+ 38344349 × 90000000 giving us 3450991410000000

= 3829587100644628
