My calculator crashed

$111111111$ consists of 9 ones. $9/9 =1$ Odd Value

$111 111 111= 12345679 *9$

$\sqrt{12345679} * \sqrt{9} = 10540.92553)$

$111111111111111111$ consists of 18 ones $18/9=2$ Even Value

$111 111 111 111 111 111= 12345679012345679 *9$

$\sqrt{12345679012345679} * \sqrt{9} = 111111111.1 * 3 = 333333333.3)$

Therefore for odd value of 9, it is not possible to predict the digit. However, for every even value of 9, all the digits are three.

$1998/9=222$ Even Value Therefore all the digits will be 3

I think the answer should be 3 and not 1

please who ever has solved the problem sincerely kindly give the solution