995399 divided by 81 
The aim is to understand the frequency of 81 in 995399.

Step 1:
When dividing 9 by 81, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 81

Let's proceed to step 2:
When dividing 99 by 81, we get 1 with a remainder of 18.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 81 from 99 leaves us with 18.
Bring next digit (5) of the dividend behind the 18 and repeat the process: 185 / 81

Advancing to step 3:
81 goes into 185 2 times with a remainder of 23.
The next digit of our result is 2. 
Result so far: 12.0
Deduct 162 from 185 and we're left with 23.
Append the next digit (3) from the dividend to 23 and continue with: 233 / 81

On to step 4:
If we divide 233 by 81, we get 2 and a remainder of 71.
The number 2 becomes the next digit in our result. 
Result so far: 122.0
The remainder is 71 after subtracting 162 from 233.
Take the next digit (9) from the dividend and append it to 71, then repeat: 719 / 81

Advancing to step 5:
719 divided by 81 is 8 with a remainder of 71.
The next digit of our result is 8. 
Result so far: 1228.0
Subtracting 648 from 719 leaves us with 71.
Take the next digit (9) from the dividend and append it to 71, then repeat: 719 / 81

Step 6:
81 goes into 719 8 times with a remainder of 71.
Put 8 as the next digit of the answer. 
Result so far: 12288.0
Deduct 648 from 719 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 7:
The number 81 fits into 710 8 times, leaving a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 12288.8
If we take 648 away from 710, we end up 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.

Advancing to step 8:
If we divide 620 by 81, we get 7 and a remainder of 53.
The next digit of our result is 7. 
Result so far: 12288.87
If we take 567 away from 620, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 9:
530 divided by 81 is 6 with a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 12288.876
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.

Let's proceed to step 10:
81 can be fit into 440 5 times, resulting in a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 12288.8765
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.

Step 11:
81 goes into 350 4 times with a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 12288.87654
Subtracting 324 from 350 leaves us 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.

Let's proceed to step 12:
260 divided by 81 is 3 with a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 12288.876543
If we subtract 243 from 260, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 13:
If we divide 170 by 81, we get 2 and a remainder of 8.
The next digit of our result is 2. 
Result so far: 12288.8765432
The remainder is 8 after subtracting 162 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 14:
80 divided by 81 is 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 12288.8765432
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The quotient of the division is 12288.8765432, and the remainder is 8e-08.