Round 859.867 to the nearest hundredth

859.867

The hundredth digit is the 6.

The digit after the 6 is the digit 7, since the digit 7 is more than 5, we round up the 6 to 7.

So it is ≈ 859.87

If the digit after the 6 was less than 5, we would have rounded down to 859.86

So 859.867 ≈ 859.87 to the nearest hundred digit 

Hope this helps.