256904 ÷ 57 
We want to figure out the number of times 256904 can be divided by 57.

Let's proceed to step 1:
57 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 57

Going ahead to step 2:
When dividing 25 by 57, we get 0 with a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Include the next digit (6) from the dividend after 25, then repeat: 256 / 57

On to step 3:
256 divided by 57 is 4 with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 228 away from 256, we end up with 28.
Bring next digit (9) of the dividend behind the 28 and repeat the process: 289 / 57

On to step 4:
289 divided by 57 is 5 with a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 45.0
The remainder is 4 after subtracting 285 from 289.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 57

Moving on to step 5:
If we divide 40 by 57, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 450.0
If we subtract 0 from 40, we get 40.
Grab the next digit (4) from the dividend, add it to 40, then carry on: 404 / 57

Going ahead to step 6:
When dividing 404 by 57, we get 7 with a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 4507.0
If we subtract 399 from 404, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
When dividing 50 by 57, we get 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 4507.0
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 8:
57 goes into 500 8 times with a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 4507.08
Subtracting 456 from 500 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 9:
If we divide 440 by 57, we get 7 and a remainder of 41.
The number 7 becomes the next digit in our result. 
Result so far: 4507.087
If we subtract 399 from 440, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 10:
57 can be fit into 410 7 times, resulting in a remainder of 11.
The next digit of our result is 7. 
Result so far: 4507.0877
Subtract 399 from 410 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final outcome is 4507.0877, with a leftover of 0.00011.