Divide:
$$ 16.46 \div 20 $$
The above question can be written as,
$$ 16.46\div20=\dfrac{16.46 }{ 20 } $$
Multipling both numerator and denominator by 100 we get,
$$ = \dfrac{ 16.46 \times 100}{ 20 \times 100} $$
$$ = \dfrac{1646 }{ 2000 } $$
By long division (as shown in image), we get
$$ 16.46\div20=\dfrac{ 1646 }{ 2000 } = 0.823 $$