We divide 859985 by 4
We want to divide 859985 by 4.

Going ahead to step 1:
The number 4 fits into 8 2 times, leaving a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 8 from 8 and we're left with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 4

Moving on to step 2:
4 can be fit into 5 1 times, resulting in a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we subtract 4 from 5, we get 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 4

Let's proceed to step 3:
4 goes into 19 4 times with a remainder of 3.
Put 4 as the next digit of the answer. 
Result so far: 214.0
Deduct 16 from 19 and we're left with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 4

On to step 4:
39 divided by 4 is 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 2149.0
Deduct 36 from 39 and we're left with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 4

Advancing to step 5:
4 goes into 38 9 times with a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 21499.0
If we take 36 away from 38, we end up with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 4

Going ahead to step 6:
When dividing 25 by 4, we get 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 214996.0
Subtract 24 from 25 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
4 goes into 10 2 times with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 214996.2
If we subtract 8 from 10, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
If we divide 20 by 4, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 214996.25
If we subtract 20 from 20, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 214996.25
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
If we divide 0 by 4, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 214996.25
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 214996.25, with a leftover of 0.0.