We look at the division of 15307539 by 852 
We're looking to find how many times 852 goes into 15307539.

On to step 1:
852 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 852

Moving on to step 2:
If we divide 15 by 852, we get 0 and a remainder of 15.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Fetch the next digit (3) from the dividend, attach it to 15 and continue: 153 / 852

Step 3:
If we divide 153 by 852, we get 0 and a remainder of 153.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 153, we end up with 153.
Bring next digit (0) of the dividend behind the 153 and repeat the process: 1530 / 852

On to step 4:
852 goes into 1530 1 times with a remainder of 678.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 852 from 1530 to get 678.
Grab the next digit (7) from the dividend, add it to 678, then carry on: 6787 / 852

Let's proceed to step 5:
6787 divided by 852 is 7 with a remainder of 823.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Subtract 5964 from 6787 to get 823.
Grab the next digit (5) from the dividend, add it to 823, then carry on: 8235 / 852

Advancing to step 6:
852 goes into 8235 9 times with a remainder of 567.
Record the quotient 9 as the next digit in the result. 
Result so far: 179.0
If we take 7668 away from 8235, we end up with 567.
Include the next digit (3) from the dividend after 567, then repeat: 5673 / 852

Let's proceed to step 7:
5673 divided by 852 is 6 with a remainder of 561.
Use 6 as the next digit of our solution. 
Result so far: 1796.0
The remainder is 561 after subtracting 5112 from 5673.
Take the next digit (9) from the dividend and append it to 561, then repeat: 5619 / 852

Advancing to step 8:
The number 852 fits into 5619 6 times, leaving a remainder of 507.
The number 6 becomes the next digit in our result. 
Result so far: 17966.0
If we subtract 5112 from 5619, we get 507.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

Advancing to step 9:
When dividing 5070 by 852, we get 5 with a remainder of 810.
Write down 5 as next digit of the result. 
Result so far: 17966.5
The remainder is 810 after subtracting 4260 from 5070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Going ahead to step 10:
When dividing 8100 by 852, we get 9 with a remainder of 432.
Record the quotient 9 as the next digit in the result. 
Result so far: 17966.59
Subtract 7668 from 8100 to get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Moving on to step 11:
When dividing 4320 by 852, we get 5 with a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 17966.595
Subtract 4260 from 4320 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 12:
The number 852 fits into 600 0 times, leaving a remainder of 600.
The next digit of our result is 0. 
Result so far: 17966.595
Subtract 0 from 600 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Advancing to step 13:
852 can be fit into 6000 7 times, resulting in a remainder of 36.
Use 7 as the next digit of our solution. 
Result so far: 17966.59507
Subtract 5964 from 6000 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 14:
360 divided by 852 is 0 with a remainder of 360.
Write down 0 as next digit of the result. 
Result so far: 17966.59507
Deduct 0 from 360 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 15:
852 can be fit into 3600 4 times, resulting in a remainder of 192.
Record the quotient 4 as the next digit in the result. 
Result so far: 17966.5950704
The remainder is 192 after subtracting 3408 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 16:
The number 852 fits into 1920 2 times, leaving a remainder of 216.
Put 2 as the next digit of the answer. 
Result so far: 17966.59507042
Deduct 1704 from 1920 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Our division results in 17966.59507042 with a remaining 2.16e-07.