Alright, let's work through 64026814 times 19705040 step by step
64026814 × 19705040 = 19705040 × (64026814)
+ 19705040 × 4 that is equal 78820160
+ 19705040 × 10 that equals 197050400
+ 19705040 × 800 what gives us 15764032000
+ 19705040 × 6000 yielding 118230240000
+ 19705040 × 20000 producing 394100800000
+ 19705040 × 000000 which equals 0
+ 19705040 × 4000000 which equals 78820160000000
+ 19705040 × 60000000 resulting in 1182302400000000

= 1261650930942560
