We know that if sum of digits of a number is divisible by 9, then the number is divisible by 9.

Here, sum of digits is 26, which is not divisible by 9.

Hence, 524618 is not divisible by 9.

(ii) 7345845

We know that if sum of digits of a number is divisible by 9, then the number is divisible by 9.

Here, sum of digits is 36, which is divisible by 9.

Hence, 7345845 is divisible by 9.

(iii) 8987148

We know that if sum of digits of a number is divisible by 9, then the number is divisible by 9.

Here, sum of digits is 45, which is divisible by 9.

Hence, 8987148 is divisible by 9.