1. **State the problem:** Solve the equation $\frac{Y}{4} = -16$ for $Y$. 2. **Formula and rule:** To isolate $Y$, multiply both sides of the equation by 4 because dividing by 4 is the same as multiplying by its reciprocal. 3. **Intermediate work:** $$\frac{Y}{4} = -16$$ Multiply both sides by 4: $$Y = -16 \times 4$$ 4. **Calculate:** $$Y = -64$$ 5. **Answer:** The solution to the equation is $Y = -64$.