35390485 divided by 686 
The aim is to understand the frequency of 686 in 35390485.

Step 1:
686 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 686

Let's proceed to step 2:
686 goes into 35 0 times with a remainder of 35.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 35 leaves us with 35.
Take the next digit (3) from the dividend and append it to 35, then repeat: 353 / 686

Moving on to step 3:
The number 686 fits into 353 0 times, leaving a remainder of 353.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 353 leaves us with 353.
Take the next digit (9) from the dividend and append it to 353, then repeat: 3539 / 686

Moving on to step 4:
If we divide 3539 by 686, we get 5 and a remainder of 109.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 3430 from 3539 leaves us with 109.
Include the next digit (0) from the dividend after 109, then repeat: 1090 / 686

Going ahead to step 5:
The number 686 fits into 1090 1 times, leaving a remainder of 404.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
Subtract 686 from 1090 to get 404.
Append the next digit (4) from the dividend to 404 and continue with: 4044 / 686

Moving on to step 6:
686 can be fit into 4044 5 times, resulting in a remainder of 614.
The number 5 becomes the next digit in our result. 
Result so far: 515.0
If we subtract 3430 from 4044, we get 614.
Fetch the next digit (8) from the dividend, attach it to 614 and continue: 6148 / 686

Step 7:
686 can be fit into 6148 8 times, resulting in a remainder of 660.
Put 8 as the next digit of the answer. 
Result so far: 5158.0
The remainder is 660 after subtracting 5488 from 6148.
Take the next digit (5) from the dividend and append it to 660, then repeat: 6605 / 686

Moving on to step 8:
When dividing 6605 by 686, we get 9 with a remainder of 431.
The number 9 becomes the next digit in our result. 
Result so far: 51589.0
Subtract 6174 from 6605 to get 431.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4310, and continue the process.

Let's proceed to step 9:
If we divide 4310 by 686, we get 6 and a remainder of 194.
The number 6 becomes the next digit in our result. 
Result so far: 51589.6
If we subtract 4116 from 4310, we get 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Moving on to step 10:
686 can be fit into 1940 2 times, resulting in a remainder of 568.
Put 2 as the next digit of the answer. 
Result so far: 51589.62
If we subtract 1372 from 1940, we get 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

On to step 11:
5680 divided by 686 is 8 with a remainder of 192.
The number 8 becomes the next digit in our result. 
Result so far: 51589.628
The remainder is 192 after subtracting 5488 from 5680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 12:
If we divide 1920 by 686, we get 2 and a remainder of 548.
Record the quotient 2 as the next digit in the result. 
Result so far: 51589.6282
Subtract 1372 from 1920 to get 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Advancing to step 13:
The number 686 fits into 5480 7 times, leaving a remainder of 678.
Use 7 as the next digit of our solution. 
Result so far: 51589.62827
Deduct 4802 from 5480 and we're left with 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

Advancing to step 14:
If we divide 6780 by 686, we get 9 and a remainder of 606.
The next digit of our result is 9. 
Result so far: 51589.628279
The remainder is 606 after subtracting 6174 from 6780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Moving on to step 15:
When dividing 6060 by 686, we get 8 with a remainder of 572.
Write down 8 as next digit of the result. 
Result so far: 51589.6282798
If we subtract 5488 from 6060, we get 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

Let's proceed to step 16:
5720 divided by 686 is 8 with a remainder of 232.
Use 8 as the next digit of our solution. 
Result so far: 51589.62827988
Deduct 5488 from 5720 and we're left with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

After the division, we end up with 51589.62827988 and a remainder of 2.32e-07.