Alright, let's work through 7757 times 821 step by step
7757 × 821 = 821 × (7757)
+ 821 × 7 that equals 5747
+ 821 × 50 producing 41050
+ 821 × 700 what gives us 574700
+ 821 × 7000 that results in 5747000

= 6368497
