593291 divided by 81 
The aim is to understand the frequency of 81 in 593291.

Going ahead to step 1:
The number 81 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 81

Going ahead to step 2:
81 can be fit into 59 0 times, resulting in a remainder of 59.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 59, we end up with 59.
Grab the next digit (3) from the dividend, add it to 59, then carry on: 593 / 81

Going ahead to step 3:
If we divide 593 by 81, we get 7 and a remainder of 26.
The next digit of our result is 7. 
Result so far: 7.0
Subtracting 567 from 593 leaves us with 26.
Append the next digit (2) from the dividend to 26 and continue with: 262 / 81

Step 4:
81 goes into 262 3 times with a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 73.0
Subtract 243 from 262 to get 19.
Fetch the next digit (9) from the dividend, attach it to 19 and continue: 199 / 81

Advancing to step 5:
If we divide 199 by 81, we get 2 and a remainder of 37.
Use 2 as the next digit of our solution. 
Result so far: 732.0
If we subtract 162 from 199, we get 37.
Append the next digit (1) from the dividend to 37 and continue with: 371 / 81

Advancing to step 6:
371 divided by 81 is 4 with a remainder of 47.
Write down 4 as next digit of the result. 
Result so far: 7324.0
Deduct 324 from 371 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 7:
470 divided by 81 is 5 with a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 7324.5
Deduct 405 from 470 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 8:
81 can be fit into 650 8 times, resulting in a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 7324.58
Subtracting 648 from 650 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 9:
If we divide 20 by 81, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 7324.58
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 10:
The number 81 fits into 200 2 times, leaving a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 7324.5802
If we take 162 away from 200, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 11:
380 divided by 81 is 4 with a remainder of 56.
The next digit of our result is 4. 
Result so far: 7324.58024
Deduct 324 from 380 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 12:
If we divide 560 by 81, we get 6 and a remainder of 74.
Record the quotient 6 as the next digit in the result. 
Result so far: 7324.580246
Subtracting 486 from 560 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 13:
The number 81 fits into 740 9 times, leaving a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 7324.5802469
Subtract 729 from 740 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 14:
If we divide 110 by 81, we get 1 and a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 7324.58024691
Deduct 81 from 110 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The quotient of the division is 7324.58024691, and the remainder is 2.9e-08.