Alright, let's work through 7657 times 8439 step by step
7657 × 8439 = 8439 × (7657)
+ 8439 × 7 that is equal 59073
+ 8439 × 50 that equals 421950
+ 8439 × 600 that results in 5063400
+ 8439 × 7000 producing 59073000

= 64617423
