No problem, we've got 8064664 and 64341853 to multiply
8064664 × 64341853 = 64341853 × (8064664)
+ 64341853 × 4 that equals 257367412
+ 64341853 × 60 producing 3860511180
+ 64341853 × 600 giving us 38605111800
+ 64341853 × 4000 resulting in 257367412000
+ 64341853 × 60000 yielding 3860511180000
+ 64341853 × 000000 giving us 0
+ 64341853 × 8000000 resulting in 514734824000000

= 518895425582392
