13383785 ÷ 831 
Let's see how many times 831 fits into 13383785.

Going ahead to step 1:
1 divided by 831 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 831

Let's proceed to step 2:
If we divide 13 by 831, we get 0 and a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Grab the next digit (3) from the dividend, add it to 13, then carry on: 133 / 831

Advancing to step 3:
When dividing 133 by 831, we get 0 with a remainder of 133.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 133, we get 133.
Include the next digit (8) from the dividend after 133, then repeat: 1338 / 831

On to step 4:
The number 831 fits into 1338 1 times, leaving a remainder of 507.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 831 from 1338 and we're left with 507.
Append the next digit (3) from the dividend to 507 and continue with: 5073 / 831

Step 5:
The number 831 fits into 5073 6 times, leaving a remainder of 87.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we subtract 4986 from 5073, we get 87.
Fetch the next digit (7) from the dividend, attach it to 87 and continue: 877 / 831

Step 6:
When dividing 877 by 831, we get 1 with a remainder of 46.
The next digit of our result is 1. 
Result so far: 161.0
If we take 831 away from 877, we end up with 46.
Take the next digit (8) from the dividend and append it to 46, then repeat: 468 / 831

Advancing to step 7:
When dividing 468 by 831, we get 0 with a remainder of 468.
Record the quotient 0 as the next digit in the result. 
Result so far: 1610.0
Deduct 0 from 468 and we're left with 468.
Take the next digit (5) from the dividend and append it to 468, then repeat: 4685 / 831

Let's proceed to step 8:
The number 831 fits into 4685 5 times, leaving a remainder of 530.
Use 5 as the next digit of our solution. 
Result so far: 16105.0
Subtracting 4155 from 4685 leaves us with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

On to step 9:
5300 divided by 831 is 6 with a remainder of 314.
Put 6 as the next digit of the answer. 
Result so far: 16105.6
Subtract 4986 from 5300 to get 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Advancing to step 10:
If we divide 3140 by 831, we get 3 and a remainder of 647.
Use 3 as the next digit of our solution. 
Result so far: 16105.63
If we subtract 2493 from 3140, we get 647.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6470, and continue the process.

Moving on to step 11:
If we divide 6470 by 831, we get 7 and a remainder of 653.
Put 7 as the next digit of the answer. 
Result so far: 16105.637
Deduct 5817 from 6470 and we're left with 653.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6530, and continue the process.

Advancing to step 12:
831 can be fit into 6530 7 times, resulting in a remainder of 713.
Put 7 as the next digit of the answer. 
Result so far: 16105.6377
If we subtract 5817 from 6530, we get 713.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7130, and continue the process.

The final outcome is 16105.6377, with a leftover of 0.00713.