We're dividing 627877 by 81 
The aim is to understand the frequency of 81 in 627877.

Going ahead to step 1:
81 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 81

Step 2:
If we divide 62 by 81, we get 0 and a remainder of 62.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 62 leaves us with 62.
Grab the next digit (7) from the dividend, add it to 62, then carry on: 627 / 81

Going ahead to step 3:
81 goes into 627 7 times with a remainder of 60.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
If we take 567 away from 627, we end up with 60.
Bring next digit (8) of the dividend behind the 60 and repeat the process: 608 / 81

Going ahead to step 4:
The number 81 fits into 608 7 times, leaving a remainder of 41.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
The remainder is 41 after subtracting 567 from 608.
Take the next digit (7) from the dividend and append it to 41, then repeat: 417 / 81

On to step 5:
81 can be fit into 417 5 times, resulting in a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 775.0
Subtracting 405 from 417 leaves us with 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 81

Step 6:
81 goes into 127 1 times with a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 7751.0
The remainder is 46 after subtracting 81 from 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 7:
81 can be fit into 460 5 times, resulting in a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 7751.5
Deduct 405 from 460 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.

Let's proceed to step 8:
81 goes into 550 6 times with a remainder of 64.
The next digit of our result is 6. 
Result so far: 7751.56
Deduct 486 from 550 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 9:
81 goes into 640 7 times with a remainder of 73.
Use 7 as the next digit of our solution. 
Result so far: 7751.567
If we take 567 away from 640, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 10:
The number 81 fits into 730 9 times, leaving a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 7751.5679
The remainder is 1 after subtracting 729 from 730.
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 11:
81 can be fit into 10 0 times, resulting in a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 7751.5679
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.

On to step 12:
The number 81 fits into 100 1 times, leaving a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 7751.567901
Subtracting 81 from 100 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 13:
When dividing 190 by 81, we get 2 with a remainder of 28.
The next digit of our result is 2. 
Result so far: 7751.5679012
Subtracting 162 from 190 leaves us 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.

Step 14:
When dividing 280 by 81, we get 3 with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 7751.56790123
The remainder is 37 after subtracting 243 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Our division results in 7751.56790123 with a remaining 3.7e-08.