258638 ÷ 4 
Let's see how many times 4 fits into 258638.

Going ahead to step 1:
When dividing 2 by 4, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 4

Moving on to step 2:
4 goes into 25 6 times with a remainder of 1.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 24 from 25 and we're left with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 4

Let's proceed to step 3:
4 goes into 18 4 times with a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 64.0
Deduct 16 from 18 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 4

Going ahead to step 4:
If we divide 26 by 4, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 646.0
Subtracting 24 from 26 leaves us with 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 4

Moving on to step 5:
4 can be fit into 23 5 times, resulting in a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 6465.0
Subtracting 20 from 23 leaves us with 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 4

Moving on to step 6:
The number 4 fits into 38 9 times, leaving a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 64659.0
If we subtract 36 from 38, 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.

Going ahead to step 7:
If we divide 20 by 4, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 64659.5
Deduct 20 from 20 and we're left 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.

Let's proceed to step 8:
When dividing 0 by 4, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 64659.5
Deduct 0 from 0 and we're left 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.

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: 64659.5
The remainder is 0 after subtracting 0 from 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 64659.5 with a remainder of 0.0.