Let's calculate 5359538 x 64243604
5359538 × 64243604 = 64243604 × (5359538)
+ 64243604 × 8 resulting in 513948832
+ 64243604 × 30 resulting in 1927308120
+ 64243604 × 500 which equals 32121802000
+ 64243604 × 9000 yielding 578192436000
+ 64243604 × 50000 giving us 3212180200000
+ 64243604 × 300000 yielding 19273081200000
+ 64243604 × 5000000 producing 321218020000000

= 344316036894952
