Let's divide 758251 by 81
The aim is to understand the frequency of 81 in 758251.

On to step 1:
7 divided by 81 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 81

Let's proceed to step 2:
When dividing 75 by 81, we get 0 with a remainder of 75.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Append the next digit (8) from the dividend to 75 and continue with: 758 / 81

Moving on to step 3:
81 goes into 758 9 times with a remainder of 29.
The next digit of our result is 9. 
Result so far: 9.0
If we take 729 away from 758, we end up with 29.
Bring next digit (2) of the dividend behind the 29 and repeat the process: 292 / 81

Moving on to step 4:
When dividing 292 by 81, we get 3 with a remainder of 49.
Write down 3 as next digit of the result. 
Result so far: 93.0
Deduct 243 from 292 and we're left with 49.
Fetch the next digit (5) from the dividend, attach it to 49 and continue: 495 / 81

Let's proceed to step 5:
81 goes into 495 6 times with a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 936.0
Deduct 486 from 495 and we're left with 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 81

Going ahead to step 6:
The number 81 fits into 91 1 times, leaving a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 9361.0
If we subtract 81 from 91, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
When dividing 100 by 81, we get 1 with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 9361.1
The remainder is 19 after subtracting 81 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 8:
81 goes into 190 2 times with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 9361.12
Subtracting 162 from 190 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
If we divide 280 by 81, we get 3 and a remainder of 37.
Use 3 as the next digit of our solution. 
Result so far: 9361.123
Subtract 243 from 280 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 10:
81 can be fit into 370 4 times, resulting in a remainder of 46.
Put 4 as the next digit of the answer. 
Result so far: 9361.1234
The remainder is 46 after subtracting 324 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 11:
The number 81 fits into 460 5 times, leaving a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 9361.12345
If we take 405 away from 460, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 12:
The number 81 fits into 550 6 times, leaving a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 9361.123456
If we take 486 away from 550, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 13:
81 goes into 640 7 times with a remainder of 73.
The next digit of our result is 7. 
Result so far: 9361.1234567
Subtract 567 from 640 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 14:
730 divided by 81 is 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 9361.12345679
Deduct 729 from 730 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 9361.12345679, with a leftover of 1e-09.