Alright, let's work through 64142950 times 99975504 step by step
64142950 × 99975504 = 99975504 × (64142950)
+ 99975504 × 0 that is equal 0
+ 99975504 × 50 giving us 4998775200
+ 99975504 × 900 giving us 89977953600
+ 99975504 × 2000 that results in 199951008000
+ 99975504 × 40000 producing 3999020160000
+ 99975504 × 100000 resulting in 9997550400000
+ 99975504 × 4000000 producing 399902016000000
+ 99975504 × 60000000 which equals 5998530240000000

= 6412723754296800
