If

**
ERROR * ERROR = GRIEVANCE**

What is the title of this puzzle?

The largest possible value of GRIEVANCE is 987654327,

so the largest possible value of ERROR is sqrt(987654327) = 31426

so E is 1 or 2 or 3.

Since R*R ends in E and E is 1 or 2 or 3, then E must be 1 (because no squares end in 2 or 3).

So R = 9.

Our multiplication is 199?9 * 199?9.

Largest possible value is 19989^2 = 399560121

Smallest possible value is 19909^2 = 396368281

So, G is 3 and I is 6 or 7 or 8

Might as well do all of the multiplications;

ERROR GRIEVANCE

19909 396368281 no good, because A = C

19929 397165041 a winner!

19939 397563721 no good, because I = N

19949 397962601 no good, because R = E

19959 398361681 no good, because I = C

19969 398760961 no good, because R = N

19979 399160441 no good, because R = I

19989 399560121 no good, because R = I

So

0123456789

NEOGCAVI?R

70 6570

IN VAIN