We look at the division of 309683 by 89 
The aim is to understand the frequency of 89 in 309683.

Step 1:
89 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 89

Advancing to step 2:
89 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 30 after subtracting 0 from 30.
Include the next digit (9) from the dividend after 30, then repeat: 309 / 89

Step 3:
309 divided by 89 is 3 with a remainder of 42.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 42 after subtracting 267 from 309.
Include the next digit (6) from the dividend after 42, then repeat: 426 / 89

Step 4:
426 divided by 89 is 4 with a remainder of 70.
Write down 4 as next digit of the result. 
Result so far: 34.0
Subtract 356 from 426 to get 70.
Bring next digit (8) of the dividend behind the 70 and repeat the process: 708 / 89

Moving on to step 5:
If we divide 708 by 89, we get 7 and a remainder of 85.
Write down 7 as next digit of the result. 
Result so far: 347.0
If we take 623 away from 708, we end up with 85.
Include the next digit (3) from the dividend after 85, then repeat: 853 / 89

Moving on to step 6:
853 divided by 89 is 9 with a remainder of 52.
Write down 9 as next digit of the result. 
Result so far: 3479.0
Deduct 801 from 853 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 7:
If we divide 520 by 89, we get 5 and a remainder of 75.
The next digit of our result is 5. 
Result so far: 3479.5
Deduct 445 from 520 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 8:
750 divided by 89 is 8 with a remainder of 38.
The number 8 becomes the next digit in our result. 
Result so far: 3479.58
Subtracting 712 from 750 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 9:
380 divided by 89 is 4 with a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 3479.584
Subtract 356 from 380 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
240 divided by 89 is 2 with a remainder of 62.
Write down 2 as next digit of the result. 
Result so far: 3479.5842
If we take 178 away from 240, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 11:
89 can be fit into 620 6 times, resulting in a remainder of 86.
Record the quotient 6 as the next digit in the result. 
Result so far: 3479.58426
Subtract 534 from 620 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 12:
The number 89 fits into 860 9 times, leaving a remainder of 59.
The next digit of our result is 9. 
Result so far: 3479.584269
If we subtract 801 from 860, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 13:
When dividing 590 by 89, we get 6 with a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 3479.5842696
The remainder is 56 after subtracting 534 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 14:
If we divide 560 by 89, we get 6 and a remainder of 26.
The number 6 becomes the next digit in our result. 
Result so far: 3479.58426966
Subtract 534 from 560 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

In conclusion, the division gives 3479.58426966 with a balance of 2.6e-08.