1. **State the problem:** We need to divide 79.87 by -4.9. 2. **Recall the division rule:** Dividing a positive number by a negative number results in a negative quotient. 3. **Set up the division:** $$\frac{79.87}{-4.9}$$ 4. **Perform the division ignoring the sign:** Calculate $$\frac{79.87}{4.9}$$. 5. **Calculate:** $$79.87 \div 4.9 \approx 16.29$$ (rounded to two decimal places). 6. **Apply the sign rule:** Since the divisor is negative, the result is negative. 7. **Final answer:** $$\frac{79.87}{-4.9} = -16.29$$ This means 79.87 divided by -4.9 equals approximately -16.29.