We're going to solve 64140423 multiplied by 99619204
64140423 × 99619204 = 99619204 × (64140423)
+ 99619204 × 3 what gives us 298857612
+ 99619204 × 20 producing 1992384080
+ 99619204 × 400 that results in 39847681600
+ 99619204 × 0000 which equals 0
+ 99619204 × 40000 yielding 3984768160000
+ 99619204 × 100000 resulting in 9961920400000
+ 99619204 × 4000000 producing 398476816000000
+ 99619204 × 60000000 producing 5977152240000000

= 6389617883483292
