Problem with Stack too deep, try removing local variables

Question

code:

 function collect(address addr)  public returns (uint256){
        Deposit[] storage invests = users[addr].deposits;
         uint256  i = 0;
         uint256 profit = 0;
        while (i < invests.length){
            Deposit storage  invest = invests[i];
            if (invest.lastDepositTime < invest.depositTime.add(200 days)){
                 uint256  remainedTime = BOX_PERIOD[0].sub(invest.lastDepositTime.sub(invest.depositTime));
              //  timeSpent = now.sub(invest.lastDepositTime);
            if (remainedTime &gt; 0){

               uint256 a;               
               uint256 b;
               uint256 c;
               uint256 d;
               uint256 e;
               uint256 f;
               uint256 g;
               uint256 timespend;
               uint256 i2; 
               uint256 j; 
               uint256 k;   
               uint256 h;   

              a=profit;
              b=24;
              c=100;
              d=60;
              e=100;
              f=60;
              g=100;

              h=10000000;
              timespend=now.sub(invest.lastDepositTime);

            profit = a.div(b).mul(c).div(d).mul(e).div(f).mul(g).div(h);

I got error: browser/test1.sol:76:30: CompilerError: Stack too deep, try removing local variables. profit = invest.amount.div(24).mul(100).div(60).mul(100).div(60).mul(100).div(1000000).mul(timeSpent); ^----^

This is only if add .mul(timeSpent),other way works.

I have tried too uint[8], uint[256] I got data location bust be storage or memory for variable but still not works..