186587 divided by 61 
The aim is to understand the frequency of 61 in 186587.

On to step 1:
1 divided by 61 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 61

Moving on to step 2:
61 goes into 18 0 times with a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Include the next digit (6) from the dividend after 18, then repeat: 186 / 61

On to step 3:
When dividing 186 by 61, we get 3 with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 183 from 186 leaves us with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 61

Step 4:
61 goes into 35 0 times with a remainder of 35.
Write down 0 as next digit of the result. 
Result so far: 30.0
If we take 0 away from 35, we end up with 35.
Take the next digit (8) from the dividend and append it to 35, then repeat: 358 / 61

Going ahead to step 5:
358 divided by 61 is 5 with a remainder of 53.
The number 5 becomes the next digit in our result. 
Result so far: 305.0
Deduct 305 from 358 and we're left with 53.
Take the next digit (7) from the dividend and append it to 53, then repeat: 537 / 61

Moving on to step 6:
61 goes into 537 8 times with a remainder of 49.
The number 8 becomes the next digit in our result. 
Result so far: 3058.0
The remainder is 49 after subtracting 488 from 537.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 7:
490 divided by 61 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 3058.8
If we take 488 away from 490, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
If we divide 20 by 61, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 3058.8
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
If we divide 200 by 61, we get 3 and a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 3058.803
If we take 183 away from 200, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 10:
The number 61 fits into 170 2 times, leaving a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 3058.8032
The remainder is 48 after subtracting 122 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 11:
61 goes into 480 7 times with a remainder of 53.
The number 7 becomes the next digit in our result. 
Result so far: 3058.80327
Subtracting 427 from 480 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 12:
The number 61 fits into 530 8 times, leaving a remainder of 42.
The next digit of our result is 8. 
Result so far: 3058.803278
Subtracting 488 from 530 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 13:
420 divided by 61 is 6 with a remainder of 54.
The number 6 becomes the next digit in our result. 
Result so far: 3058.8032786
Deduct 366 from 420 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 14:
The number 61 fits into 540 8 times, leaving a remainder of 52.
The next digit of our result is 8. 
Result so far: 3058.80327868
The remainder is 52 after subtracting 488 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 3058.80327868, with a leftover of 5.2e-08.