1. The problem is to find the result of dividing 18 by 5. 2. The division formula is $\text{Dividend} \div \text{Divisor} = \text{Quotient}$. 3. Here, the dividend is 18 and the divisor is 5, so we calculate $18 \div 5$. 4. We can write this as a fraction: $$\frac{18}{5}$$. 5. Since 18 and 5 have no common factors other than 1, the fraction is already in simplest form. 6. To express as a mixed number, divide 18 by 5: $18 = 5 \times 3 + 3$. 7. So, $$18 \div 5 = 3 \frac{3}{5}$$. 8. As a decimal, divide 18 by 5: $$18 \div 5 = 3.6$$. Final answer: $$3.6$$ or $$3 \frac{3}{5}$$.