680339 divided by 89 
The aim is to understand the frequency of 89 in 680339.

Moving on to step 1:
If we divide 6 by 89, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 89

On to step 2:
If we divide 68 by 89, we get 0 and a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Bring next digit (0) of the dividend behind the 68 and repeat the process: 680 / 89

Let's proceed to step 3:
680 divided by 89 is 7 with a remainder of 57.
The next digit of our result is 7. 
Result so far: 7.0
If we subtract 623 from 680, we get 57.
Include the next digit (3) from the dividend after 57, then repeat: 573 / 89

Step 4:
89 can be fit into 573 6 times, resulting in a remainder of 39.
Use 6 as the next digit of our solution. 
Result so far: 76.0
Deduct 534 from 573 and we're left with 39.
Include the next digit (3) from the dividend after 39, then repeat: 393 / 89

Advancing to step 5:
When dividing 393 by 89, we get 4 with a remainder of 37.
Use 4 as the next digit of our solution. 
Result so far: 764.0
Subtract 356 from 393 to get 37.
Include the next digit (9) from the dividend after 37, then repeat: 379 / 89

Let's proceed to step 6:
379 divided by 89 is 4 with a remainder of 23.
The number 4 becomes the next digit in our result. 
Result so far: 7644.0
Subtracting 356 from 379 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 7:
89 can be fit into 230 2 times, resulting in a remainder of 52.
The next digit of our result is 2. 
Result so far: 7644.2
Deduct 178 from 230 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.

Going ahead to step 8:
The number 89 fits into 520 5 times, leaving a remainder of 75.
The next digit of our result is 5. 
Result so far: 7644.25
If we take 445 away from 520, we end up 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.

Let's proceed to step 9:
If we divide 750 by 89, we get 8 and a remainder of 38.
Record the quotient 8 as the next digit in the result. 
Result so far: 7644.258
The remainder is 38 after subtracting 712 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 10:
The number 89 fits into 380 4 times, leaving a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 7644.2584
The remainder is 24 after subtracting 356 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 11:
The number 89 fits into 240 2 times, leaving a remainder of 62.
The next digit of our result is 2. 
Result so far: 7644.25842
If we subtract 178 from 240, we get 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 12:
When dividing 620 by 89, we get 6 with a remainder of 86.
Put 6 as the next digit of the answer. 
Result so far: 7644.258426
Subtracting 534 from 620 leaves us with 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 13:
89 can be fit into 860 9 times, resulting in a remainder of 59.
Use 9 as the next digit of our solution. 
Result so far: 7644.2584269
The remainder is 59 after subtracting 801 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 14:
The number 89 fits into 590 6 times, leaving a remainder of 56.
Use 6 as the next digit of our solution. 
Result so far: 7644.25842696
If we subtract 534 from 590, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

After the division, we end up with 7644.25842696 and a remainder of 5.6e-08.