The generator matrix

 1  0  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  0  1  1  1  1  1  0  1  1  1  1  1  1  1  1  1  1  3  1  1  1  1  1  3  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  3  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1
 0  1  1  a 7a+7 8a+4 3a+5 8a+5 8a a+5  0 a+5 8a  a 8a+5 3a+7 7a+7 8a+4  1 3a+5  0 3a+7 8a+5 8a+4  1  a 3a+5 2a+5  3 8a a+5 7a+7 a+8 6a+5 2a+5  1 a+3 8a+3 a+7 3a+7 8a+7  1 4a+5 4a 8a+7 8a+3 6a+5 3a 2a+5 8a+7 a+8  5 8a+3 5a+5 6a+1 2a+3 4a  7  1 a+7 a+7  3 a+8 4a 6a+5 5a+7 2a+5  8 4a+4 6a+6 a+5 5a+3 7a+3 5a+7 a+8  8  3 8a+5 8a+7 2a 2a+2 6a+6  7 6a+5 a+2  6 2a+7 2a+7 2a+3 4a+2 3a 3a+7
 0  0 3a+6  0 3a+6  3 6a+6 6a+6  6 3a 3a+6 3a  3  0 6a 6a+3 6a+6  6 6a 3a 6a  6 3a 6a+3 6a 3a+3 3a+6 6a 6a  6  3  0 6a+3  0 6a+6 6a+3  3 6a  3 3a+3  6 3a+3 3a+6  3 3a+6  0 6a+6  0  6  6 3a 3a 6a+3  3 3a 6a  6 6a+6  6 6a+3 6a+6  0 6a 3a+3 3a+3  3 3a  6  3 6a  3 3a 3a+6 6a+6  6 6a+3 3a 3a  3 3a+3  6 6a+3 3a  3  0 6a+3 6a+6 6a  6  3 3a+6 6a
 0  0  0  3 3a+6 3a+6  3 3a  3 3a+3 6a 6a+6 6a 3a 3a+3 3a+6  0 6a+3 3a 6a+3 6a+6  6 3a 6a  3  0  3  6 3a 6a+6 3a 3a+6 3a 6a+6 6a+3  0 6a+3 6a+3 6a+6 3a+6 3a  6 3a+6  6 6a+3  0 3a+6 6a+3  0 6a+6  3 3a+6 6a+3  0 6a+6 6a 3a+6 6a  6 3a+3 3a  6 6a+3  6 6a+6 3a+3  0 3a+6 3a+3  3  0  6  6 6a+3  6 3a 3a 3a+3  6  3 6a  3  0 6a+3  6  6 3a+6 6a+6  6 6a+6 3a 6a

generates a code of length 92 over GR(81,9) who´s minimum homogenous weight is 702.

Homogenous weight enumerator: w(x)=1x^0+464x^702+72x^707+432x^708+2520x^710+5304x^711+1440x^715+2160x^716+5904x^717+14184x^719+17944x^720+5400x^724+6696x^725+15984x^726+29808x^728+32216x^729+19872x^733+20664x^734+41904x^735+62712x^737+63344x^738+25776x^742+22896x^743+40752x^744+48240x^746+43160x^747+360x^756+408x^765+248x^774+224x^783+224x^792+88x^801+32x^810+8x^819

The gray image is a code over GF(9) with n=828, k=6 and d=702.
This code was found by Heurico 1.16 in 56.6 seconds.