Alright, let's work through 9797 times 643 step by step
9797 × 643 = 643 × (9797)
+ 643 × 7 producing 4501
+ 643 × 90 that equals 57870
+ 643 × 700 yielding 450100
+ 643 × 9000 which equals 5787000

= 6299471
