c. $(8 \times 10^{9}) \div (4 \times 10^{6}) =$
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Answer

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Answer

$2 \cdot 10^{3} = 2000$

Steps

Step 1 ： $(8 \times 10^{9}) \div (4 \times 10^{6}) = (8 \times 10^{9}) \cdot \frac{1}{4 \times 10^{6}}$

Step 2 ： $(8 \times 10^{9}) \cdot \frac{1}{4 \times 10^{6}} = 8 \cdot 10^{9} \cdot \frac{1}{4} \cdot \frac{1}{10^{6}}$

Step 3 ： $8 \cdot 10^{9} \cdot \frac{1}{4} \cdot \frac{1}{10^{6}} = 8 \cdot \frac{1}{4} \cdot 10^{9} \cdot \frac{1}{10^{6}}$

Step 4 ： $8 \cdot \frac{1}{4} \cdot 10^{9} \cdot \frac{1}{10^{6}} = (8 \div 4) \cdot (10^{9} \div 10^{6})$

Step 5 ： $(8 \div 4) \cdot (10^{9} \div 10^{6}) = 2 \cdot 10^{3}$

Step 6 ： $2 \cdot 10^{3} = 2000$