Alright, let's work through 7779 times 8577 step by step
7779 × 8577 = 8577 × (7779)
+ 8577 × 9 producing 77193
+ 8577 × 70 that is equal 600390
+ 8577 × 700 what gives us 6003900
+ 8577 × 7000 which equals 60039000

= 66720483
