Divide :

2.24 ÷ 0.8

We have:

$\dfrac{2.24}{0.8} = \dfrac{2.24 \times 10}{0.8 \times 10} = \dfrac{22.4}{8}$

On dividing 22.4 by 8, we get:

$\begin{array}{r} 2.8 \ 8 \overline{\smash{)} 22.4 } \ \underline{16}\phantom{.0} \ 64 \ \underline{64} \ 0 \phantom{.} \end{array}$

Hence, $\dfrac{2.24}{0.8} = \dfrac{22.4}{8} = 2.8$