995736 ÷ 81 
The aim is to understand the frequency of 81 in 995736.

Step 1:
The number 81 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 81

Advancing to step 2:
The number 81 fits into 99 1 times, leaving a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 81 from 99 and we're left with 18.
Bring next digit (5) of the dividend behind the 18 and repeat the process: 185 / 81

Let's proceed to step 3:
185 divided by 81 is 2 with a remainder of 23.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 23 after subtracting 162 from 185.
Fetch the next digit (7) from the dividend, attach it to 23 and continue: 237 / 81

Advancing to step 4:
When dividing 237 by 81, we get 2 with a remainder of 75.
The next digit of our result is 2. 
Result so far: 122.0
The remainder is 75 after subtracting 162 from 237.
Fetch the next digit (3) from the dividend, attach it to 75 and continue: 753 / 81

On to step 5:
When dividing 753 by 81, we get 9 with a remainder of 24.
Use 9 as the next digit of our solution. 
Result so far: 1229.0
The remainder is 24 after subtracting 729 from 753.
Take the next digit (6) from the dividend and append it to 24, then repeat: 246 / 81

Let's proceed to step 6:
81 goes into 246 3 times with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 12293.0
If we subtract 243 from 246, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
If we divide 30 by 81, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 12293.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
81 goes into 300 3 times with a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 12293.03
Deduct 243 from 300 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.

Going ahead to step 9:
If we divide 570 by 81, we get 7 and a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 12293.037
Subtracting 567 from 570 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 10:
30 divided by 81 is 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 12293.037
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
If we divide 300 by 81, we get 3 and a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 12293.03703
Subtracting 243 from 300 leaves us 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.

Going ahead to step 12:
81 goes into 570 7 times with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 12293.037037
Deduct 567 from 570 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 13:
The number 81 fits into 30 0 times, leaving a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 12293.037037
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
If we divide 300 by 81, we get 3 and a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 12293.03703703
Subtracting 243 from 300 leaves us 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.

The quotient of the division is 12293.03703703, and the remainder is 5.7e-08.