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

generates a code of length 89 over GR(81,9) who´s minimum homogenous weight is 675.

Homogenous weight enumerator: w(x)=1x^0+232x^675+72x^679+360x^683+1696x^684+1656x^686+1368x^687+1872x^688+3960x^692+13472x^693+9576x^695+5544x^696+6552x^697+13176x^701+32072x^702+19656x^704+10800x^705+11160x^706+41976x^710+85232x^711+41976x^713+20448x^714+20160x^715+45504x^719+81944x^720+32112x^722+14328x^723+12672x^724+432x^729+512x^738+320x^747+288x^756+160x^765+96x^774+32x^783+24x^792

The gray image is a code over GF(9) with n=801, k=6 and d=675.
This code was found by Heurico 1.16 in 55.5 seconds.