Alright, let's work through 65966339 times 65776242 step by step
65966339 × 65776242 = 65776242 × (65966339)
+ 65776242 × 9 resulting in 591986178
+ 65776242 × 30 what gives us 1973287260
+ 65776242 × 300 that equals 19732872600
+ 65776242 × 6000 what gives us 394657452000
+ 65776242 × 60000 yielding 3946574520000
+ 65776242 × 900000 giving us 59198617800000
+ 65776242 × 5000000 giving us 328881210000000
+ 65776242 × 60000000 producing 3946574520000000

= 4339017877918038
