Round to three decimal places.
37
37=
Perform a written division. Since you want to round the result to three digits, you have to compute (at least) four digits.
=0.4285…
Now, round to three digits (up).
≈0.429
813
813=
=0.6153…
Now, round to three digits (down).
≈0.615
53
53=
=1.6666…
≈1.667
27
27=
=0.2857…
=0.286
311
311=
=0.2727…
≈0.273
1311
1311=
=1.1818…
≈1.182