Let's divide 696505 by 81
The aim is to understand the frequency of 81 in 696505.

On to step 1:
81 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 81

Advancing to step 2:
81 can be fit into 69 0 times, resulting in a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 69, we get 69.
Bring next digit (6) of the dividend behind the 69 and repeat the process: 696 / 81

Advancing to step 3:
When dividing 696 by 81, we get 8 with a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 48 after subtracting 648 from 696.
Bring next digit (5) of the dividend behind the 48 and repeat the process: 485 / 81

On to step 4:
When dividing 485 by 81, we get 5 with a remainder of 80.
Use 5 as the next digit of our solution. 
Result so far: 85.0
The remainder is 80 after subtracting 405 from 485.
Bring next digit (0) of the dividend behind the 80 and repeat the process: 800 / 81

Let's proceed to step 5:
If we divide 800 by 81, we get 9 and a remainder of 71.
Use 9 as the next digit of our solution. 
Result so far: 859.0
Subtract 729 from 800 to get 71.
Append the next digit (5) from the dividend to 71 and continue with: 715 / 81

Let's proceed to step 6:
715 divided by 81 is 8 with a remainder of 67.
Write down 8 as next digit of the result. 
Result so far: 8598.0
If we subtract 648 from 715, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 7:
81 can be fit into 670 8 times, resulting in a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 8598.8
The remainder is 22 after subtracting 648 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 8:
The number 81 fits into 220 2 times, leaving a remainder of 58.
Put 2 as the next digit of the answer. 
Result so far: 8598.82
Subtracting 162 from 220 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 9:
81 goes into 580 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 8598.827
If we subtract 567 from 580, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 10:
81 can be fit into 130 1 times, resulting in a remainder of 49.
The next digit of our result is 1. 
Result so far: 8598.8271
Subtracting 81 from 130 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 11:
81 goes into 490 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 8598.82716
If we take 486 away from 490, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 12:
81 goes into 40 0 times with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 8598.82716
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
400 divided by 81 is 4 with a remainder of 76.
Record the quotient 4 as the next digit in the result. 
Result so far: 8598.8271604
Subtracting 324 from 400 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 14:
760 divided by 81 is 9 with a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 8598.82716049
If we take 729 away from 760, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

The quotient of the division is 8598.82716049, and the remainder is 3.1e-08.