Alright, let's work through 64478054 times 51709252 step by step
64478054 × 51709252 = 51709252 × (64478054)
+ 51709252 × 4 producing 206837008
+ 51709252 × 50 which equals 2585462600
+ 51709252 × 000 which equals 0
+ 51709252 × 8000 giving us 413674016000
+ 51709252 × 70000 yielding 3619647640000
+ 51709252 × 400000 what gives us 20683700800000
+ 51709252 × 4000000 producing 206837008000000
+ 51709252 × 60000000 resulting in 3102555120000000

= 3334111942755608
