86459448 ÷ 256 
We want to divide 86459448 by 256.

Going ahead to step 1:
If we divide 8 by 256, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 256

On to step 2:
When dividing 86 by 256, we get 0 with a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Bring next digit (4) of the dividend behind the 86 and repeat the process: 864 / 256

Moving on to step 3:
864 divided by 256 is 3 with a remainder of 96.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 96 after subtracting 768 from 864.
Take the next digit (5) from the dividend and append it to 96, then repeat: 965 / 256

Going ahead to step 4:
If we divide 965 by 256, we get 3 and a remainder of 197.
The next digit of our result is 3. 
Result so far: 33.0
Subtract 768 from 965 to get 197.
Grab the next digit (9) from the dividend, add it to 197, then carry on: 1979 / 256

Let's proceed to step 5:
256 goes into 1979 7 times with a remainder of 187.
Use 7 as the next digit of our solution. 
Result so far: 337.0
Deduct 1792 from 1979 and we're left with 187.
Take the next digit (4) from the dividend and append it to 187, then repeat: 1874 / 256

On to step 6:
When dividing 1874 by 256, we get 7 with a remainder of 82.
Put 7 as the next digit of the answer. 
Result so far: 3377.0
Deduct 1792 from 1874 and we're left with 82.
Grab the next digit (4) from the dividend, add it to 82, then carry on: 824 / 256

Advancing to step 7:
256 goes into 824 3 times with a remainder of 56.
Record the quotient 3 as the next digit in the result. 
Result so far: 33773.0
If we take 768 away from 824, we end up with 56.
Bring next digit (8) of the dividend behind the 56 and repeat the process: 568 / 256

Going ahead to step 8:
The number 256 fits into 568 2 times, leaving a remainder of 56.
The number 2 becomes the next digit in our result. 
Result so far: 337732.0
Deduct 512 from 568 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 9:
If we divide 560 by 256, we get 2 and a remainder of 48.
The next digit of our result is 2. 
Result so far: 337732.2
Subtracting 512 from 560 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 10:
480 divided by 256 is 1 with a remainder of 224.
Record the quotient 1 as the next digit in the result. 
Result so far: 337732.21
Subtract 256 from 480 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 11:
256 goes into 2240 8 times with a remainder of 192.
Put 8 as the next digit of the answer. 
Result so far: 337732.218
The remainder is 192 after subtracting 2048 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 12:
The number 256 fits into 1920 7 times, leaving a remainder of 128.
Use 7 as the next digit of our solution. 
Result so far: 337732.2187
If we subtract 1792 from 1920, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Going ahead to step 13:
1280 divided by 256 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 337732.21875
If we subtract 1280 from 1280, 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.

Moving on to step 14:
If we divide 0 by 256, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 337732.21875
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.

Moving on to step 15:
0 divided by 256 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 337732.21875
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.

After the division, we end up with 337732.21875 and a remainder of 0.0.