757619 divided by 81 
The aim is to understand the frequency of 81 in 757619.

Going ahead to step 1:
81 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 81

Going ahead to step 2:
75 divided by 81 is 0 with a remainder of 75.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Take the next digit (7) from the dividend and append it to 75, then repeat: 757 / 81

Advancing to step 3:
81 goes into 757 9 times with a remainder of 28.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 729 away from 757, we end up with 28.
Fetch the next digit (6) from the dividend, attach it to 28 and continue: 286 / 81

Advancing to step 4:
When dividing 286 by 81, we get 3 with a remainder of 43.
Record the quotient 3 as the next digit in the result. 
Result so far: 93.0
If we take 243 away from 286, we end up with 43.
Include the next digit (1) from the dividend after 43, then repeat: 431 / 81

Advancing to step 5:
81 goes into 431 5 times with a remainder of 26.
Put 5 as the next digit of the answer. 
Result so far: 935.0
Deduct 405 from 431 and we're left with 26.
Fetch the next digit (9) from the dividend, attach it to 26 and continue: 269 / 81

Going ahead to step 6:
If we divide 269 by 81, we get 3 and a remainder of 26.
Record the quotient 3 as the next digit in the result. 
Result so far: 9353.0
If we take 243 away from 269, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 7:
When dividing 260 by 81, we get 3 with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 9353.3
Subtracting 243 from 260 leaves us 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 8:
81 goes into 170 2 times with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 9353.32
If we take 162 away from 170, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
When dividing 80 by 81, we get 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 9353.32
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 10:
The number 81 fits into 800 9 times, leaving a remainder of 71.
Record the quotient 9 as the next digit in the result. 
Result so far: 9353.3209
The remainder is 71 after subtracting 729 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 11:
81 can be fit into 710 8 times, resulting in a remainder of 62.
The number 8 becomes the next digit in our result. 
Result so far: 9353.32098
Deduct 648 from 710 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 12:
81 goes into 620 7 times with a remainder of 53.
Use 7 as the next digit of our solution. 
Result so far: 9353.320987
The remainder is 53 after subtracting 567 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 13:
When dividing 530 by 81, we get 6 with a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 9353.3209876
The remainder is 44 after subtracting 486 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 14:
The number 81 fits into 440 5 times, leaving a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 9353.32098765
Subtract 405 from 440 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Our division results in 9353.32098765 with a remaining 3.5e-08.