83831517 divided by 686 
We want to figure out the number of times 83831517 can be divided by 686.

Going ahead to step 1:
686 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 686

Let's proceed to step 2:
If we divide 83 by 686, we get 0 and a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 83 leaves us with 83.
Append the next digit (8) from the dividend to 83 and continue with: 838 / 686

On to step 3:
686 goes into 838 1 times with a remainder of 152.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 686 from 838 to get 152.
Append the next digit (3) from the dividend to 152 and continue with: 1523 / 686

Let's proceed to step 4:
686 goes into 1523 2 times with a remainder of 151.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 1372 from 1523 leaves us with 151.
Append the next digit (1) from the dividend to 151 and continue with: 1511 / 686

On to step 5:
If we divide 1511 by 686, we get 2 and a remainder of 139.
Use 2 as the next digit of our solution. 
Result so far: 122.0
Deduct 1372 from 1511 and we're left with 139.
Fetch the next digit (5) from the dividend, attach it to 139 and continue: 1395 / 686

Step 6:
1395 divided by 686 is 2 with a remainder of 23.
The next digit of our result is 2. 
Result so far: 1222.0
The remainder is 23 after subtracting 1372 from 1395.
Bring next digit (1) of the dividend behind the 23 and repeat the process: 231 / 686

Moving on to step 7:
686 can be fit into 231 0 times, resulting in a remainder of 231.
The next digit of our result is 0. 
Result so far: 12220.0
The remainder is 231 after subtracting 0 from 231.
Take the next digit (7) from the dividend and append it to 231, then repeat: 2317 / 686

On to step 8:
686 goes into 2317 3 times with a remainder of 259.
The next digit of our result is 3. 
Result so far: 122203.0
Deduct 2058 from 2317 and we're left with 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Advancing to step 9:
2590 divided by 686 is 3 with a remainder of 532.
Put 3 as the next digit of the answer. 
Result so far: 122203.3
If we subtract 2058 from 2590, we get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

On to step 10:
686 can be fit into 5320 7 times, resulting in a remainder of 518.
Put 7 as the next digit of the answer. 
Result so far: 122203.37
Subtracting 4802 from 5320 leaves us with 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Let's proceed to step 11:
686 goes into 5180 7 times with a remainder of 378.
Use 7 as the next digit of our solution. 
Result so far: 122203.377
If we subtract 4802 from 5180, we get 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

The final outcome is 122203.377, with a leftover of 0.0378.