We're dividing 664745 by 61 
The aim is to understand the frequency of 61 in 664745.

Going ahead to step 1:
6 divided by 61 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 61

Going ahead to step 2:
61 goes into 66 1 times with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 61 away from 66, we end up with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 61

Let's proceed to step 3:
54 divided by 61 is 0 with a remainder of 54.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 54 to get 54.
Include the next digit (7) from the dividend after 54, then repeat: 547 / 61

Going ahead to step 4:
61 can be fit into 547 8 times, resulting in a remainder of 59.
The number 8 becomes the next digit in our result. 
Result so far: 108.0
Subtract 488 from 547 to get 59.
Fetch the next digit (4) from the dividend, attach it to 59 and continue: 594 / 61

Step 5:
594 divided by 61 is 9 with a remainder of 45.
Record the quotient 9 as the next digit in the result. 
Result so far: 1089.0
If we take 549 away from 594, we end up with 45.
Fetch the next digit (5) from the dividend, attach it to 45 and continue: 455 / 61

Step 6:
If we divide 455 by 61, we get 7 and a remainder of 28.
The next digit of our result is 7. 
Result so far: 10897.0
Deduct 427 from 455 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
If we divide 280 by 61, we get 4 and a remainder of 36.
Write down 4 as next digit of the result. 
Result so far: 10897.4
Subtracting 244 from 280 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 8:
The number 61 fits into 360 5 times, leaving a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 10897.45
Deduct 305 from 360 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 9:
550 divided by 61 is 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 10897.459
Subtract 549 from 550 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 10:
When dividing 10 by 61, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 10897.459
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 11:
When dividing 100 by 61, we get 1 with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 10897.45901
If we take 61 away from 100, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 12:
When dividing 390 by 61, we get 6 with a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 10897.459016
The remainder is 24 after subtracting 366 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 13:
240 divided by 61 is 3 with a remainder of 57.
Write down 3 as next digit of the result. 
Result so far: 10897.4590163
If we take 183 away from 240, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 14:
If we divide 570 by 61, we get 9 and a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 10897.45901639
The remainder is 21 after subtracting 549 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

The final result is 10897.45901639 with a remainder of 2.1e-08.