The task is to divide a number by 7 efficiently without using {/, *, -} operators.

Possible Solution:

The solution is to realize that we can do this operation by dividing number on 8 using shift operation X >> 3 = x/8 and utilizing modulus operator %.

The algorithm is to divide number by 8 continually, changing the number to to the sum of division and the remainder.

Possible Solution:

The solution is to realize that we can do this operation by dividing number on 8 using shift operation X >> 3 = x/8 and utilizing modulus operator %.

The algorithm is to divide number by 8 continually, changing the number to to the sum of division and the remainder.

```
```

int Divide(int Number)

{

int value = 0;

while (Number > 7)

int temp = (Number >> 3);

value += temp;

Number = (Number % 8) + temp;

}

if (Number == 7) value++;

return value;

}