We divide 122585 by 4
We want to divide 122585 by 4.

Step 1:
If we divide 1 by 4, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 4

Advancing to step 2:
4 goes into 12 3 times with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 12 from 12 to get 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 4

Going ahead to step 3:
4 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 4

Moving on to step 4:
The number 4 fits into 25 6 times, leaving a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 306.0
Subtracting 24 from 25 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 4

Step 5:
When dividing 18 by 4, we get 4 with a remainder of 2.
The next digit of our result is 4. 
Result so far: 3064.0
Subtracting 16 from 18 leaves us with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 4

On to step 6:
25 divided by 4 is 6 with a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 30646.0
If we take 24 away from 25, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
When dividing 10 by 4, we get 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 30646.2
Subtracting 8 from 10 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
4 goes into 20 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 30646.25
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.

Step 9:
4 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 30646.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
If we divide 0 by 4, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 30646.25
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.

Our division results in 30646.25 with a remaining 0.0.