Alright, let's work through 66279759 times 55726446 step by step
66279759 × 55726446 = 55726446 × (66279759)
+ 55726446 × 9 producing 501538014
+ 55726446 × 50 that results in 2786322300
+ 55726446 × 700 that is equal 39008512200
+ 55726446 × 9000 that is equal 501538014000
+ 55726446 × 70000 that is equal 3900851220000
+ 55726446 × 200000 resulting in 11145289200000
+ 55726446 × 6000000 resulting in 334358676000000
+ 55726446 × 60000000 yielding 3343586760000000

= 3693535410806514
