758406 ÷ 81 
The aim is to understand the frequency of 81 in 758406.

Step 1:
If we divide 7 by 81, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 81

On to step 2:
75 divided by 81 is 0 with a remainder of 75.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Bring next digit (8) of the dividend behind the 75 and repeat the process: 758 / 81

Let's proceed to step 3:
81 goes into 758 9 times with a remainder of 29.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 729 from 758 to get 29.
Include the next digit (4) from the dividend after 29, then repeat: 294 / 81

Step 4:
If we divide 294 by 81, we get 3 and a remainder of 51.
Put 3 as the next digit of the answer. 
Result so far: 93.0
If we take 243 away from 294, we end up with 51.
Fetch the next digit (0) from the dividend, attach it to 51 and continue: 510 / 81

On to step 5:
510 divided by 81 is 6 with a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 936.0
If we take 486 away from 510, we end up with 24.
Grab the next digit (6) from the dividend, add it to 24, then carry on: 246 / 81

Advancing to step 6:
If we divide 246 by 81, we get 3 and a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 9363.0
Subtract 243 from 246 to 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.

Step 7:
30 divided by 81 is 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 9363.0
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 8:
The number 81 fits into 300 3 times, leaving a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 9363.03
The remainder is 57 after subtracting 243 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 9:
The number 81 fits into 570 7 times, leaving a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 9363.037
If we subtract 567 from 570, 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.

Step 10:
81 goes into 30 0 times with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 9363.037
Subtracting 0 from 30 leaves us with 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:
The number 81 fits into 300 3 times, leaving a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 9363.03703
Subtract 243 from 300 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 12:
If we divide 570 by 81, we get 7 and a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 9363.037037
Subtract 567 from 570 to 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.

Going ahead to step 13:
The number 81 fits into 30 0 times, leaving a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 9363.037037
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 14:
The number 81 fits into 300 3 times, leaving a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 9363.03703703
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.

Our division results in 9363.03703703 with a remaining 5.7e-08.