Oring or nesting if stament paramenter with many values

I want to include multiple options in if statement parameter for the same result but with different condition values.

I want to include a new line after printing 8 values.

This is my example:

int main(void) {

  uint8_t k;

    for (k=0;k<64;k++)
    {
        printf("%d,",k);
        if ((k == 7) && (k == 14) && (k == 21) && (k == 28) && (k == 35) && (k == 42) && (k == 49))
            printf("\n");
    }
    return 0;
}