We're dividing 99897 by 61 
The aim is to understand the frequency of 61 in 99897.

Advancing to step 1:
61 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 61

Advancing to step 2:
The number 61 fits into 99 1 times, leaving a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 61 away from 99, we end up with 38.
Append the next digit (8) from the dividend to 38 and continue with: 388 / 61

Going ahead to step 3:
The number 61 fits into 388 6 times, leaving a remainder of 22.
Write down 6 as next digit of the result. 
Result so far: 16.0
Deduct 366 from 388 and we're left with 22.
Bring next digit (9) of the dividend behind the 22 and repeat the process: 229 / 61

Let's proceed to step 4:
When dividing 229 by 61, we get 3 with a remainder of 46.
Record the quotient 3 as the next digit in the result. 
Result so far: 163.0
If we subtract 183 from 229, we get 46.
Append the next digit (7) from the dividend to 46 and continue with: 467 / 61

Let's proceed to step 5:
467 divided by 61 is 7 with a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 1637.0
Subtract 427 from 467 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 6:
If we divide 400 by 61, we get 6 and a remainder of 34.
The next digit of our result is 6. 
Result so far: 1637.6
Deduct 366 from 400 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 7:
61 goes into 340 5 times with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 1637.65
If we take 305 away from 340, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 8:
61 can be fit into 350 5 times, resulting in a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 1637.655
Subtract 305 from 350 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

The final outcome is 1637.655, with a leftover of 0.0045.