1. The problem is to calculate the division of 30 by 3. 2. The formula for division is $\frac{a}{b}$ where $a$ is the dividend and $b$ is the divisor. 3. Here, $a=30$ and $b=3$. 4. Perform the division: $$\frac{30}{3}$$ 5. Simplify the fraction by canceling common factors: $$\frac{\cancel{30}}{\cancel{3}} = 10$$ 6. Therefore, the result of $30 \div 3$ is 10.