We look at the division of 31239357 by 880 
We want to divide 31239357 by 880.

Step 1:
880 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 880

Going ahead to step 2:
When dividing 31 by 880, we get 0 with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 880

Let's proceed to step 3:
880 goes into 312 0 times with a remainder of 312.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 312, we end up with 312.
Fetch the next digit (3) from the dividend, attach it to 312 and continue: 3123 / 880

Going ahead to step 4:
880 goes into 3123 3 times with a remainder of 483.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 2640 from 3123 leaves us with 483.
Grab the next digit (9) from the dividend, add it to 483, then carry on: 4839 / 880

On to step 5:
If we divide 4839 by 880, we get 5 and a remainder of 439.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
Deduct 4400 from 4839 and we're left with 439.
Include the next digit (3) from the dividend after 439, then repeat: 4393 / 880

Advancing to step 6:
4393 divided by 880 is 4 with a remainder of 873.
Use 4 as the next digit of our solution. 
Result so far: 354.0
Subtract 3520 from 4393 to get 873.
Append the next digit (5) from the dividend to 873 and continue with: 8735 / 880

Step 7:
The number 880 fits into 8735 9 times, leaving a remainder of 815.
Put 9 as the next digit of the answer. 
Result so far: 3549.0
If we subtract 7920 from 8735, we get 815.
Grab the next digit (7) from the dividend, add it to 815, then carry on: 8157 / 880

On to step 8:
When dividing 8157 by 880, we get 9 with a remainder of 237.
The next digit of our result is 9. 
Result so far: 35499.0
Subtracting 7920 from 8157 leaves us with 237.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2370, and continue the process.

Step 9:
880 can be fit into 2370 2 times, resulting in a remainder of 610.
Put 2 as the next digit of the answer. 
Result so far: 35499.2
The remainder is 610 after subtracting 1760 from 2370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

On to step 10:
The number 880 fits into 6100 6 times, leaving a remainder of 820.
Record the quotient 6 as the next digit in the result. 
Result so far: 35499.26
Deduct 5280 from 6100 and we're left with 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8200, and continue the process.

Moving on to step 11:
When dividing 8200 by 880, we get 9 with a remainder of 280.
Use 9 as the next digit of our solution. 
Result so far: 35499.269
Subtracting 7920 from 8200 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 12:
The number 880 fits into 2800 3 times, leaving a remainder of 160.
Record the quotient 3 as the next digit in the result. 
Result so far: 35499.2693
Subtracting 2640 from 2800 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 13:
880 goes into 1600 1 times with a remainder of 720.
Write down 1 as next digit of the result. 
Result so far: 35499.26931
The remainder is 720 after subtracting 880 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Let's proceed to step 14:
880 goes into 7200 8 times with a remainder of 160.
Put 8 as the next digit of the answer. 
Result so far: 35499.269318
If we subtract 7040 from 7200, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 15:
1600 divided by 880 is 1 with a remainder of 720.
Put 1 as the next digit of the answer. 
Result so far: 35499.2693181
Subtract 880 from 1600 to get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Going ahead to step 16:
7200 divided by 880 is 8 with a remainder of 160.
Use 8 as the next digit of our solution. 
Result so far: 35499.26931818
Subtract 7040 from 7200 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

The final result is 35499.26931818 with a remainder of 1.6e-07.