Problem
\( \begin{array}{r}42: 6= \\ 420: 6= \\ 4200: 6= \\ 42000: 6=\end{array} \)
Solution
Step 1 ：\( 42 \div 6 = \frac{42}{6} = 7 \)
Step 2 ：\( 420 \div 6 = \frac{420}{6} = 70 \)
Step 3 ：\( 4200 \div 6 = \frac{4200}{6} = 700 \)
Step 4 ：\( 42000 \div 6 = \frac{42000}{6} = 7000 \)
