770118 ÷ 81 
The aim is to understand the frequency of 81 in 770118.

Going ahead to step 1:
81 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 81

Step 2:
If we divide 77 by 81, we get 0 and a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Grab the next digit (0) from the dividend, add it to 77, then carry on: 770 / 81

Step 3:
If we divide 770 by 81, we get 9 and a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Deduct 729 from 770 and we're left with 41.
Bring next digit (1) of the dividend behind the 41 and repeat the process: 411 / 81

Going ahead to step 4:
81 can be fit into 411 5 times, resulting in a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 95.0
If we subtract 405 from 411, we get 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 81

Going ahead to step 5:
The number 81 fits into 61 0 times, leaving a remainder of 61.
Use 0 as the next digit of our solution. 
Result so far: 950.0
If we take 0 away from 61, we end up with 61.
Grab the next digit (8) from the dividend, add it to 61, then carry on: 618 / 81

Step 6:
81 goes into 618 7 times with a remainder of 51.
Put 7 as the next digit of the answer. 
Result so far: 9507.0
The remainder is 51 after subtracting 567 from 618.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 7:
81 can be fit into 510 6 times, resulting in a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 9507.6
Deduct 486 from 510 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 8:
81 can be fit into 240 2 times, resulting in a remainder of 78.
Record the quotient 2 as the next digit in the result. 
Result so far: 9507.62
The remainder is 78 after subtracting 162 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 9:
780 divided by 81 is 9 with a remainder of 51.
Use 9 as the next digit of our solution. 
Result so far: 9507.629
Deduct 729 from 780 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 10:
81 can be fit into 510 6 times, resulting in a remainder of 24.
Write down 6 as next digit of the result. 
Result so far: 9507.6296
If we take 486 away from 510, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
240 divided by 81 is 2 with a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 9507.62962
The remainder is 78 after subtracting 162 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 12:
81 goes into 780 9 times with a remainder of 51.
Record the quotient 9 as the next digit in the result. 
Result so far: 9507.629629
If we subtract 729 from 780, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 13:
The number 81 fits into 510 6 times, leaving a remainder of 24.
The next digit of our result is 6. 
Result so far: 9507.6296296
If we take 486 away from 510, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 14:
When dividing 240 by 81, we get 2 with a remainder of 78.
The next digit of our result is 2. 
Result so far: 9507.62962962
Deduct 162 from 240 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

The final outcome is 9507.62962962, with a leftover of 7.8e-08.