We look at the division of 458172 by 61 
The aim is to understand the frequency of 61 in 458172.

Moving on to step 1:
If we divide 4 by 61, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 61

Going ahead to step 2:
If we divide 45 by 61, we get 0 and a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 45 and we're left with 45.
Fetch the next digit (8) from the dividend, attach it to 45 and continue: 458 / 61

Advancing to step 3:
The number 61 fits into 458 7 times, leaving a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtracting 427 from 458 leaves us with 31.
Take the next digit (1) from the dividend and append it to 31, then repeat: 311 / 61

On to step 4:
When dividing 311 by 61, we get 5 with a remainder of 6.
The number 5 becomes the next digit in our result. 
Result so far: 75.0
If we take 305 away from 311, we end up with 6.
Fetch the next digit (7) from the dividend, attach it to 6 and continue: 67 / 61

Advancing to step 5:
When dividing 67 by 61, we get 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 751.0
Subtracting 61 from 67 leaves us with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 61

Step 6:
61 goes into 62 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 7511.0
Deduct 61 from 62 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
61 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 7511.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
The number 61 fits into 100 1 times, leaving a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 7511.01
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.

Let's proceed to step 9:
390 divided by 61 is 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 7511.016
If we take 366 away from 390, 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.

Advancing to step 10:
61 can be fit into 240 3 times, resulting in a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 7511.0163
Deduct 183 from 240 and we're left 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.

On to step 11:
570 divided by 61 is 9 with a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 7511.01639
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.

Step 12:
The number 61 fits into 210 3 times, leaving a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 7511.016393
If we take 183 away from 210, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 13:
If we divide 270 by 61, we get 4 and a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 7511.0163934
If we subtract 244 from 270, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 14:
260 divided by 61 is 4 with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 7511.01639344
Deduct 244 from 260 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 7511.01639344, and the remainder is 1.6e-08.