Alright, let's work through 6651 times 9591 step by step
6651 × 9591 = 9591 × (6651)
+ 9591 × 1 that results in 9591
+ 9591 × 50 which equals 479550
+ 9591 × 600 that is equal 5754600
+ 9591 × 6000 that equals 57546000

= 63789741
