Solve for the box: 16 - (box / 3) = 4

The given equation is:

$$16 - (\text{box} \div 3) = 4$$

Subtract 16 from both sides of the equation:

$$- (\text{box} \div 3) = 4 - 16$$ $$- (\text{box} \div 3) = -12$$

Multiply both sides by $-1$:

$$\text{box} \div 3 = 12$$

Multiply both sides by 3:

$$\text{box} = 12 \times 3$$ $$\text{box} = 36$$

The number that goes into the box is 36.