83916647 divided by 686 
Our goal is to divide 83916647 by 686.

Going ahead to step 1:
686 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 686

On to step 2:
686 can be fit into 83 0 times, resulting in a remainder of 83.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 83 leaves us with 83.
Bring next digit (9) of the dividend behind the 83 and repeat the process: 839 / 686

Moving on to step 3:
The number 686 fits into 839 1 times, leaving a remainder of 153.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 686 away from 839, we end up with 153.
Grab the next digit (1) from the dividend, add it to 153, then carry on: 1531 / 686

Moving on to step 4:
If we divide 1531 by 686, we get 2 and a remainder of 159.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we take 1372 away from 1531, we end up with 159.
Fetch the next digit (6) from the dividend, attach it to 159 and continue: 1596 / 686

Moving on to step 5:
1596 divided by 686 is 2 with a remainder of 224.
The next digit of our result is 2. 
Result so far: 122.0
Subtract 1372 from 1596 to get 224.
Include the next digit (6) from the dividend after 224, then repeat: 2246 / 686

Advancing to step 6:
If we divide 2246 by 686, we get 3 and a remainder of 188.
The number 3 becomes the next digit in our result. 
Result so far: 1223.0
If we take 2058 away from 2246, we end up with 188.
Fetch the next digit (4) from the dividend, attach it to 188 and continue: 1884 / 686

Let's proceed to step 7:
When dividing 1884 by 686, we get 2 with a remainder of 512.
The number 2 becomes the next digit in our result. 
Result so far: 12232.0
Deduct 1372 from 1884 and we're left with 512.
Append the next digit (7) from the dividend to 512 and continue with: 5127 / 686

Advancing to step 8:
686 goes into 5127 7 times with a remainder of 325.
Write down 7 as next digit of the result. 
Result so far: 122327.0
Deduct 4802 from 5127 and we're left with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Going ahead to step 9:
If we divide 3250 by 686, we get 4 and a remainder of 506.
Put 4 as the next digit of the answer. 
Result so far: 122327.4
Deduct 2744 from 3250 and we're left with 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Moving on to step 10:
The number 686 fits into 5060 7 times, leaving a remainder of 258.
The number 7 becomes the next digit in our result. 
Result so far: 122327.47
Subtract 4802 from 5060 to get 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Step 11:
If we divide 2580 by 686, we get 3 and a remainder of 522.
Record the quotient 3 as the next digit in the result. 
Result so far: 122327.473
The remainder is 522 after subtracting 2058 from 2580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

Step 12:
686 can be fit into 5220 7 times, resulting in a remainder of 418.
Use 7 as the next digit of our solution. 
Result so far: 122327.4737
If we take 4802 away from 5220, we end up with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Moving on to step 13:
When dividing 4180 by 686, we get 6 with a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 122327.47376
Deduct 4116 from 4180 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 14:
640 divided by 686 is 0 with a remainder of 640.
Record the quotient 0 as the next digit in the result. 
Result so far: 122327.47376
Deduct 0 from 640 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 15:
6400 divided by 686 is 9 with a remainder of 226.
Record the quotient 9 as the next digit in the result. 
Result so far: 122327.4737609
If we subtract 6174 from 6400, we get 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Going ahead to step 16:
686 goes into 2260 3 times with a remainder of 202.
Put 3 as the next digit of the answer. 
Result so far: 122327.47376093
The remainder is 202 after subtracting 2058 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

After the division, we end up with 122327.47376093 and a remainder of 2.02e-07.