Let's divide 31532301 by 403
Our goal is to divide 31532301 by 403.

On to step 1:
3 divided by 403 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 403

Going ahead to step 2:
403 can be fit into 31 0 times, resulting in a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Bring next digit (5) of the dividend behind the 31 and repeat the process: 315 / 403

Advancing to step 3:
If we divide 315 by 403, we get 0 and a remainder of 315.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 315 and we're left with 315.
Grab the next digit (3) from the dividend, add it to 315, then carry on: 3153 / 403

Going ahead to step 4:
The number 403 fits into 3153 7 times, leaving a remainder of 332.
Put 7 as the next digit of the answer. 
Result so far: 7.0
The remainder is 332 after subtracting 2821 from 3153.
Fetch the next digit (2) from the dividend, attach it to 332 and continue: 3322 / 403

Moving on to step 5:
If we divide 3322 by 403, we get 8 and a remainder of 98.
Write down 8 as next digit of the result. 
Result so far: 78.0
The remainder is 98 after subtracting 3224 from 3322.
Take the next digit (3) from the dividend and append it to 98, then repeat: 983 / 403

Step 6:
403 can be fit into 983 2 times, resulting in a remainder of 177.
Put 2 as the next digit of the answer. 
Result so far: 782.0
The remainder is 177 after subtracting 806 from 983.
Take the next digit (0) from the dividend and append it to 177, then repeat: 1770 / 403

On to step 7:
When dividing 1770 by 403, we get 4 with a remainder of 158.
The next digit of our result is 4. 
Result so far: 7824.0
Subtracting 1612 from 1770 leaves us with 158.
Append the next digit (1) from the dividend to 158 and continue with: 1581 / 403

Moving on to step 8:
403 can be fit into 1581 3 times, resulting in a remainder of 372.
The number 3 becomes the next digit in our result. 
Result so far: 78243.0
Deduct 1209 from 1581 and we're left with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

On to step 9:
The number 403 fits into 3720 9 times, leaving a remainder of 93.
The next digit of our result is 9. 
Result so far: 78243.9
If we subtract 3627 from 3720, we get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Let's proceed to step 10:
403 can be fit into 930 2 times, resulting in a remainder of 124.
The next digit of our result is 2. 
Result so far: 78243.92
Deduct 806 from 930 and we're left with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 11:
1240 divided by 403 is 3 with a remainder of 31.
Use 3 as the next digit of our solution. 
Result so far: 78243.923
The remainder is 31 after subtracting 1209 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 12:
310 divided by 403 is 0 with a remainder of 310.
Record the quotient 0 as the next digit in the result. 
Result so far: 78243.923
The remainder is 310 after subtracting 0 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

On to step 13:
If we divide 3100 by 403, we get 7 and a remainder of 279.
Record the quotient 7 as the next digit in the result. 
Result so far: 78243.92307
If we take 2821 away from 3100, we end up with 279.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2790, and continue the process.

Advancing to step 14:
If we divide 2790 by 403, we get 6 and a remainder of 372.
Write down 6 as next digit of the result. 
Result so far: 78243.923076
Subtract 2418 from 2790 to get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Step 15:
403 goes into 3720 9 times with a remainder of 93.
The number 9 becomes the next digit in our result. 
Result so far: 78243.9230769
If we take 3627 away from 3720, we end up with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Step 16:
When dividing 930 by 403, we get 2 with a remainder of 124.
Record the quotient 2 as the next digit in the result. 
Result so far: 78243.92307692
If we subtract 806 from 930, we get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Our division results in 78243.92307692 with a remaining 1.24e-07.