89645649 divided by 897 
The aim is to understand the frequency of 897 in 89645649.

On to step 1:
If we divide 8 by 897, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 897

Going ahead to step 2:
897 goes into 89 0 times with a remainder of 89.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 89 leaves us with 89.
Include the next digit (6) from the dividend after 89, then repeat: 896 / 897

Moving on to step 3:
897 goes into 896 0 times with a remainder of 896.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 896 leaves us with 896.
Bring next digit (4) of the dividend behind the 896 and repeat the process: 8964 / 897

Going ahead to step 4:
897 goes into 8964 9 times with a remainder of 891.
Put 9 as the next digit of the answer. 
Result so far: 9.0
The remainder is 891 after subtracting 8073 from 8964.
Take the next digit (5) from the dividend and append it to 891, then repeat: 8915 / 897

Step 5:
The number 897 fits into 8915 9 times, leaving a remainder of 842.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
If we subtract 8073 from 8915, we get 842.
Take the next digit (6) from the dividend and append it to 842, then repeat: 8426 / 897

On to step 6:
8426 divided by 897 is 9 with a remainder of 353.
Put 9 as the next digit of the answer. 
Result so far: 999.0
If we take 8073 away from 8426, we end up with 353.
Grab the next digit (4) from the dividend, add it to 353, then carry on: 3534 / 897

On to step 7:
The number 897 fits into 3534 3 times, leaving a remainder of 843.
Record the quotient 3 as the next digit in the result. 
Result so far: 9993.0
If we take 2691 away from 3534, we end up with 843.
Bring next digit (9) of the dividend behind the 843 and repeat the process: 8439 / 897

Step 8:
When dividing 8439 by 897, we get 9 with a remainder of 366.
Write down 9 as next digit of the result. 
Result so far: 99939.0
If we subtract 8073 from 8439, we get 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

On to step 9:
897 can be fit into 3660 4 times, resulting in a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 99939.4
The remainder is 72 after subtracting 3588 from 3660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 10:
When dividing 720 by 897, we get 0 with a remainder of 720.
Write down 0 as next digit of the result. 
Result so far: 99939.4
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.

Step 11:
When dividing 7200 by 897, we get 8 with a remainder of 24.
The next digit of our result is 8. 
Result so far: 99939.408
If we take 7176 away from 7200, we end up with 24.
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 12:
When dividing 240 by 897, we get 0 with a remainder of 240.
Put 0 as the next digit of the answer. 
Result so far: 99939.408
Subtracting 0 from 240 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 13:
897 goes into 2400 2 times with a remainder of 606.
The next digit of our result is 2. 
Result so far: 99939.40802
If we take 1794 away from 2400, we end up with 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Step 14:
When dividing 6060 by 897, we get 6 with a remainder of 678.
The next digit of our result is 6. 
Result so far: 99939.408026
Subtracting 5382 from 6060 leaves us 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.

Moving on to step 15:
897 can be fit into 6780 7 times, resulting in a remainder of 501.
Use 7 as the next digit of our solution. 
Result so far: 99939.4080267
The remainder is 501 after subtracting 6279 from 6780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5010, and continue the process.

On to step 16:
5010 divided by 897 is 5 with a remainder of 525.
Put 5 as the next digit of the answer. 
Result so far: 99939.40802675
Subtract 4485 from 5010 to get 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

In conclusion, the division gives 99939.40802675 with a balance of 5.25e-07.