1. The problem is to explain the division of 18 by 5. 2. Division is the process of splitting a number into equal parts. Here, we want to find how many times 5 fits into 18. 3. The formula for division is $$\text{Dividend} \div \text{Divisor} = \text{Quotient}$$ where 18 is the dividend and 5 is the divisor. 4. Perform the division: $$18 \div 5$$. 5. Since 5 goes into 18 three times (because $5 \times 3 = 15$), write the quotient as 3 with a remainder. 6. Calculate the remainder: $$18 - 15 = 3$$. 7. So, $$18 \div 5 = 3 \text{ remainder } 3$$. 8. To express this as a decimal, write the remainder as a fraction of the divisor: $$\frac{3}{5} = 0.6$$. 9. Therefore, $$18 \div 5 = 3 + 0.6 = 3.6$$. 10. In summary, dividing 18 by 5 gives a quotient of 3.6 or 3 with a remainder of 3.