Alright, let's work through 64065957 times 66322961 step by step
64065957 × 66322961 = 66322961 × (64065957)
+ 66322961 × 7 that results in 464260727
+ 66322961 × 50 giving us 3316148050
+ 66322961 × 900 which equals 59690664900
+ 66322961 × 5000 yielding 331614805000
+ 66322961 × 60000 resulting in 3979377660000
+ 66322961 × 000000 what gives us 0
+ 66322961 × 4000000 that results in 265291844000000
+ 66322961 × 60000000 resulting in 3979377660000000

= 4249043967538677
