Let's divide 686583 by 959
The aim is to understand the frequency of 959 in 686583.

Going ahead to step 1:
959 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 959

Step 2:
If we divide 68 by 959, we get 0 and a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 68 leaves us with 68.
Bring next digit (6) of the dividend behind the 68 and repeat the process: 686 / 959

Moving on to step 3:
The number 959 fits into 686 0 times, leaving a remainder of 686.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 686 to get 686.
Fetch the next digit (5) from the dividend, attach it to 686 and continue: 6865 / 959

Moving on to step 4:
959 can be fit into 6865 7 times, resulting in a remainder of 152.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 6713 from 6865 leaves us with 152.
Take the next digit (8) from the dividend and append it to 152, then repeat: 1528 / 959

Advancing to step 5:
When dividing 1528 by 959, we get 1 with a remainder of 569.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
Deduct 959 from 1528 and we're left with 569.
Bring next digit (3) of the dividend behind the 569 and repeat the process: 5693 / 959

Step 6:
959 can be fit into 5693 5 times, resulting in a remainder of 898.
Write down 5 as next digit of the result. 
Result so far: 715.0
The remainder is 898 after subtracting 4795 from 5693.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8980, and continue the process.

Moving on to step 7:
8980 divided by 959 is 9 with a remainder of 349.
Write down 9 as next digit of the result. 
Result so far: 715.9
Subtract 8631 from 8980 to get 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Advancing to step 8:
If we divide 3490 by 959, we get 3 and a remainder of 613.
The next digit of our result is 3. 
Result so far: 715.93
Subtracting 2877 from 3490 leaves us with 613.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6130, and continue the process.

Let's proceed to step 9:
When dividing 6130 by 959, we get 6 with a remainder of 376.
Use 6 as the next digit of our solution. 
Result so far: 715.936
Subtracting 5754 from 6130 leaves us with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Going ahead to step 10:
3760 divided by 959 is 3 with a remainder of 883.
Record the quotient 3 as the next digit in the result. 
Result so far: 715.9363
Subtract 2877 from 3760 to get 883.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8830, and continue the process.

Moving on to step 11:
959 goes into 8830 9 times with a remainder of 199.
Record the quotient 9 as the next digit in the result. 
Result so far: 715.93639
Subtract 8631 from 8830 to get 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Going ahead to step 12:
959 goes into 1990 2 times with a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 715.936392
Subtract 1918 from 1990 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 13:
When dividing 720 by 959, we get 0 with a remainder of 720.
The next digit of our result is 0. 
Result so far: 715.936392
The remainder is 720 after subtracting 0 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Moving on to step 14:
959 goes into 7200 7 times with a remainder of 487.
Use 7 as the next digit of our solution. 
Result so far: 715.93639207
If we subtract 6713 from 7200, we get 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

The final outcome is 715.93639207, with a leftover of 4.87e-07.