3131921 ÷ 852 
Our goal is to divide 3131921 by 852.

Let's proceed to step 1:
If we divide 3 by 852, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 852

Step 2:
852 can be fit into 31 0 times, resulting in a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Fetch the next digit (3) from the dividend, attach it to 31 and continue: 313 / 852

Moving on to step 3:
852 can be fit into 313 0 times, resulting in a remainder of 313.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 313 to get 313.
Include the next digit (1) from the dividend after 313, then repeat: 3131 / 852

Advancing to step 4:
When dividing 3131 by 852, we get 3 with a remainder of 575.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 2556 from 3131 to get 575.
Include the next digit (9) from the dividend after 575, then repeat: 5759 / 852

Step 5:
852 can be fit into 5759 6 times, resulting in a remainder of 647.
Use 6 as the next digit of our solution. 
Result so far: 36.0
If we take 5112 away from 5759, we end up with 647.
Grab the next digit (2) from the dividend, add it to 647, then carry on: 6472 / 852

Let's proceed to step 6:
If we divide 6472 by 852, we get 7 and a remainder of 508.
The next digit of our result is 7. 
Result so far: 367.0
If we subtract 5964 from 6472, we get 508.
Take the next digit (1) from the dividend and append it to 508, then repeat: 5081 / 852

Step 7:
If we divide 5081 by 852, we get 5 and a remainder of 821.
The next digit of our result is 5. 
Result so far: 3675.0
If we take 4260 away from 5081, we end up with 821.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8210, and continue the process.

Step 8:
8210 divided by 852 is 9 with a remainder of 542.
Write down 9 as next digit of the result. 
Result so far: 3675.9
Subtracting 7668 from 8210 leaves us with 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Going ahead to step 9:
852 can be fit into 5420 6 times, resulting in a remainder of 308.
Record the quotient 6 as the next digit in the result. 
Result so far: 3675.96
Subtracting 5112 from 5420 leaves us with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Going ahead to step 10:
3080 divided by 852 is 3 with a remainder of 524.
The next digit of our result is 3. 
Result so far: 3675.963
Deduct 2556 from 3080 and we're left with 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Let's proceed to step 11:
852 goes into 5240 6 times with a remainder of 128.
Record the quotient 6 as the next digit in the result. 
Result so far: 3675.9636
If we subtract 5112 from 5240, 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.

Advancing to step 12:
852 can be fit into 1280 1 times, resulting in a remainder of 428.
Use 1 as the next digit of our solution. 
Result so far: 3675.96361
If we take 852 away from 1280, we end up with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Step 13:
The number 852 fits into 4280 5 times, leaving a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 3675.963615
Subtract 4260 from 4280 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 14:
200 divided by 852 is 0 with a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 3675.963615
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 15:
If we divide 2000 by 852, we get 2 and a remainder of 296.
Put 2 as the next digit of the answer. 
Result so far: 3675.96361502
The remainder is 296 after subtracting 1704 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

After the division, we end up with 3675.96361502 and a remainder of 2.96e-07.