We're dividing 81144957 by 256 
We want to figure out the number of times 81144957 can be divided by 256.

On to step 1:
If we divide 8 by 256, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 256

Let's proceed to step 2:
The number 256 fits into 81 0 times, leaving a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Bring next digit (1) of the dividend behind the 81 and repeat the process: 811 / 256

On to step 3:
The number 256 fits into 811 3 times, leaving a remainder of 43.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 768 from 811, we get 43.
Include the next digit (4) from the dividend after 43, then repeat: 434 / 256

Let's proceed to step 4:
256 goes into 434 1 times with a remainder of 178.
The next digit of our result is 1. 
Result so far: 31.0
Deduct 256 from 434 and we're left with 178.
Append the next digit (4) from the dividend to 178 and continue with: 1784 / 256

Let's proceed to step 5:
If we divide 1784 by 256, we get 6 and a remainder of 248.
Put 6 as the next digit of the answer. 
Result so far: 316.0
Subtracting 1536 from 1784 leaves us with 248.
Append the next digit (9) from the dividend to 248 and continue with: 2489 / 256

Moving on to step 6:
256 goes into 2489 9 times with a remainder of 185.
The number 9 becomes the next digit in our result. 
Result so far: 3169.0
Deduct 2304 from 2489 and we're left with 185.
Grab the next digit (5) from the dividend, add it to 185, then carry on: 1855 / 256

Moving on to step 7:
If we divide 1855 by 256, we get 7 and a remainder of 63.
The number 7 becomes the next digit in our result. 
Result so far: 31697.0
If we subtract 1792 from 1855, we get 63.
Include the next digit (7) from the dividend after 63, then repeat: 637 / 256

Step 8:
The number 256 fits into 637 2 times, leaving a remainder of 125.
Put 2 as the next digit of the answer. 
Result so far: 316972.0
Subtracting 512 from 637 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 9:
1250 divided by 256 is 4 with a remainder of 226.
The number 4 becomes the next digit in our result. 
Result so far: 316972.4
Subtract 1024 from 1250 to get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

On to step 10:
256 can be fit into 2260 8 times, resulting in a remainder of 212.
Record the quotient 8 as the next digit in the result. 
Result so far: 316972.48
The remainder is 212 after subtracting 2048 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 11:
If we divide 2120 by 256, we get 8 and a remainder of 72.
Write down 8 as next digit of the result. 
Result so far: 316972.488
Deduct 2048 from 2120 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final outcome is 316972.488, with a leftover of 0.0072.