Alright, let's work through 9789 times 4409 step by step
9789 × 4409 = 4409 × (9789)
+ 4409 × 9 that equals 39681
+ 4409 × 80 producing 352720
+ 4409 × 700 that results in 3086300
+ 4409 × 9000 yielding 39681000

= 43159701
