We are asked to solve four division problems involving decimal numbers: $84.6 \div 2 = ?$ $902.7 \div 9 = ?$ $9.571 \div 5 = ?$ $84.07 \div 7 = ?$

1. Problem Description

We are asked to solve four division problems involving decimal numbers:

$84.6 \div 2 = ?$

$902.7 \div 9 = ?$

$9.571 \div 5 = ?$

$84.07 \div 7 = ?$

2. Solution Steps

First problem: $84.6 \div 2$

$8 \div 2 = 4$

$4 \div 2 = 2$

$6 \div 2 = 3$

So, $84.6 \div 2 = 42.3$

Second problem: $902.7 \div 9$

$9 \div 9 = 1$

$0 \div 9 = 0$

$2 \div 9 = 0$ (carry the 2)

$27 \div 9 = 3$

So, $902.7 \div 9 = 100.3$

Third problem: $9.571 \div 5$

$9 \div 5 = 1$ with a remainder of

4. $45 \div 5 = 9$

$7 \div 5 = 1$ with a remainder of

2. $21 \div 5 = 4$ with a remainder of

1. $10 \div 5 = 2$

So, $9.571 \div 5 = 1.9142$

Fourth problem: $84.07 \div 7$

$8 \div 7 = 1$ with a remainder of 1

$14 \div 7 = 2$

$0 \div 7 = 0$

$7 \div 7 = 1$

So, $84.07 \div 7 = 12.01$

3. Final Answer

$84.6 \div 2 = 42.3$

$902.7 \div 9 = 100.3$

$9.571 \div 5 = 1.9142$

$84.07 \div 7 = 12.01$