315231 ÷ 57 
Our goal is to divide 315231 by 57.

Going ahead to step 1:
3 divided by 57 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 57

Going ahead to step 2:
If we divide 31 by 57, we get 0 and a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Grab the next digit (5) from the dividend, add it to 31, then carry on: 315 / 57

Advancing to step 3:
57 goes into 315 5 times with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 285 from 315 to get 30.
Bring next digit (2) of the dividend behind the 30 and repeat the process: 302 / 57

Step 4:
57 goes into 302 5 times with a remainder of 17.
Use 5 as the next digit of our solution. 
Result so far: 55.0
Subtracting 285 from 302 leaves us with 17.
Bring next digit (3) of the dividend behind the 17 and repeat the process: 173 / 57

On to step 5:
57 can be fit into 173 3 times, resulting in a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 553.0
If we subtract 171 from 173, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 57

Let's proceed to step 6:
If we divide 21 by 57, we get 0 and a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 5530.0
The remainder is 21 after subtracting 0 from 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 7:
57 goes into 210 3 times with a remainder of 39.
The number 3 becomes the next digit in our result. 
Result so far: 5530.3
If we subtract 171 from 210, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 8:
57 goes into 390 6 times with a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 5530.36
Deduct 342 from 390 and we're left 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.

Going ahead to step 9:
If we divide 480 by 57, we get 8 and a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 5530.368
If we subtract 456 from 480, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
When dividing 240 by 57, we get 4 with a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 5530.3684
If we subtract 228 from 240, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 11:
If we divide 120 by 57, we get 2 and a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 5530.36842
If we take 114 away from 120, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 12:
The number 57 fits into 60 1 times, leaving a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 5530.368421
The remainder is 3 after subtracting 57 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 13:
When dividing 30 by 57, we get 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 5530.368421
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 14:
300 divided by 57 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 5530.36842105
Subtracting 285 from 300 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

After the division, we end up with 5530.36842105 and a remainder of 1.5e-08.