Alright, let's work through 9813 times 7881 step by step
9813 × 7881 = 7881 × (9813)
+ 7881 × 3 which equals 23643
+ 7881 × 10 that equals 78810
+ 7881 × 800 producing 6304800
+ 7881 × 9000 that equals 70929000

= 77336253
