We divide 85910282 by 81
The aim is to understand the frequency of 81 in 85910282.

Step 1:
If we divide 8 by 81, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 81

Going ahead to step 2:
When dividing 85 by 81, we get 1 with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 81 away from 85, we end up with 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 81

Moving on to step 3:
The number 81 fits into 49 0 times, leaving a remainder of 49.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 49 and we're left with 49.
Grab the next digit (1) from the dividend, add it to 49, then carry on: 491 / 81

Step 4:
When dividing 491 by 81, we get 6 with a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
Subtracting 486 from 491 leaves us with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 81

Moving on to step 5:
81 goes into 50 0 times with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 1060.0
If we subtract 0 from 50, we get 50.
Append the next digit (2) from the dividend to 50 and continue with: 502 / 81

Step 6:
502 divided by 81 is 6 with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 10606.0
Subtract 486 from 502 to get 16.
Include the next digit (8) from the dividend after 16, then repeat: 168 / 81

Going ahead to step 7:
The number 81 fits into 168 2 times, leaving a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 106062.0
The remainder is 6 after subtracting 162 from 168.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 81

Going ahead to step 8:
81 can be fit into 62 0 times, resulting in a remainder of 62.
The number 0 becomes the next digit in our result. 
Result so far: 1060620.0
The remainder is 62 after subtracting 0 from 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 9:
If we divide 620 by 81, we get 7 and a remainder of 53.
Write down 7 as next digit of the result. 
Result so far: 1060620.7
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 10:
When dividing 530 by 81, we get 6 with a remainder of 44.
The next digit of our result is 6. 
Result so far: 1060620.76
Subtract 486 from 530 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 11:
If we divide 440 by 81, we get 5 and a remainder of 35.
The next digit of our result is 5. 
Result so far: 1060620.765
If we subtract 405 from 440, we 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.

On to step 12:
When dividing 350 by 81, we get 4 with a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 1060620.7654
The remainder is 26 after subtracting 324 from 350.
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 13:
The number 81 fits into 260 3 times, leaving a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 1060620.76543
If we take 243 away from 260, we end up 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.

Advancing to step 14:
81 can be fit into 170 2 times, resulting in a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 1060620.765432
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.

Step 15:
The number 81 fits into 80 0 times, leaving a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 1060620.765432
If we take 0 away from 80, we end up 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.

Going ahead to step 16:
The number 81 fits into 800 9 times, leaving a remainder of 71.
The number 9 becomes the next digit in our result. 
Result so far: 1060620.76543209
Deduct 729 from 800 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.

The quotient of the division is 1060620.76543209, and the remainder is 7.1e-08.