123555 ÷ 4 
We want to figure out the number of times 123555 can be divided by 4.

Step 1:
When dividing 1 by 4, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 4

On to step 2:
When dividing 12 by 4, we get 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 0 after subtracting 12 from 12.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 4

Let's proceed to step 3:
When dividing 3 by 4, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 30.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 4

Step 4:
The number 4 fits into 35 8 times, leaving a remainder of 3.
Record the quotient 8 as the next digit in the result. 
Result so far: 308.0
Deduct 32 from 35 and we're left with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 4

Moving on to step 5:
4 goes into 35 8 times with a remainder of 3.
The next digit of our result is 8. 
Result so far: 3088.0
Subtract 32 from 35 to get 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 4

Advancing to step 6:
If we divide 35 by 4, we get 8 and a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 30888.0
Subtract 32 from 35 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
If we divide 30 by 4, we get 7 and a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 30888.7
Subtracting 28 from 30 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.

Let's proceed to step 8:
When dividing 20 by 4, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 30888.75
If we take 20 away from 20, we end up 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 9:
4 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 30888.75
If we take 0 away from 0, we end up 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.

On to step 10:
If we divide 0 by 4, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 30888.75
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 30888.75 with a remaining 0.0.