258549 ÷ 4 
Our goal is to divide 258549 by 4.

Advancing to step 1:
When dividing 2 by 4, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 4

On to step 2:
25 divided by 4 is 6 with a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 24 from 25, we get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 4

Advancing to step 3:
18 divided by 4 is 4 with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 64.0
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 4:
The number 4 fits into 25 6 times, leaving a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 646.0
Deduct 24 from 25 and we're left with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 4

Moving on to step 5:
When dividing 14 by 4, we get 3 with a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 6463.0
If we subtract 12 from 14, we get 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 4

Let's proceed to step 6:
29 divided by 4 is 7 with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 64637.0
If we take 28 away from 29, 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.

Step 7:
4 goes into 10 2 times with a remainder of 2.
The next digit of our result is 2. 
Result so far: 64637.2
Deduct 8 from 10 and we're left 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 can be fit into 20 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 64637.25
Subtracting 20 from 20 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.

Going ahead to step 9:
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: 64637.25
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:
The number 4 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 64637.25
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.

The final result is 64637.25 with a remainder of 0.0.