94661215 ÷ 81 
The aim is to understand the frequency of 81 in 94661215.

Going ahead to step 1:
If we divide 9 by 81, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 81

On to step 2:
81 can be fit into 94 1 times, resulting in a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 81 from 94 to get 13.
Include the next digit (6) from the dividend after 13, then repeat: 136 / 81

On to step 3:
81 can be fit into 136 1 times, resulting in a remainder of 55.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 55 after subtracting 81 from 136.
Fetch the next digit (6) from the dividend, attach it to 55 and continue: 556 / 81

Moving on to step 4:
If we divide 556 by 81, we get 6 and a remainder of 70.
Put 6 as the next digit of the answer. 
Result so far: 116.0
Subtract 486 from 556 to get 70.
Take the next digit (1) from the dividend and append it to 70, then repeat: 701 / 81

Step 5:
The number 81 fits into 701 8 times, leaving a remainder of 53.
Use 8 as the next digit of our solution. 
Result so far: 1168.0
Deduct 648 from 701 and we're left with 53.
Bring next digit (2) of the dividend behind the 53 and repeat the process: 532 / 81

Step 6:
When dividing 532 by 81, we get 6 with a remainder of 46.
The next digit of our result is 6. 
Result so far: 11686.0
If we subtract 486 from 532, we get 46.
Include the next digit (1) from the dividend after 46, then repeat: 461 / 81

Going ahead to step 7:
461 divided by 81 is 5 with a remainder of 56.
The next digit of our result is 5. 
Result so far: 116865.0
Subtract 405 from 461 to get 56.
Include the next digit (5) from the dividend after 56, then repeat: 565 / 81

On to step 8:
When dividing 565 by 81, we get 6 with a remainder of 79.
Put 6 as the next digit of the answer. 
Result so far: 1168656.0
If we take 486 away from 565, we end up with 79.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Moving on to step 9:
81 goes into 790 9 times with a remainder of 61.
The next digit of our result is 9. 
Result so far: 1168656.9
Subtracting 729 from 790 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 10:
81 can be fit into 610 7 times, resulting in a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 1168656.97
If we take 567 away from 610, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 11:
81 goes into 430 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 1168656.975
The remainder is 25 after subtracting 405 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 12:
When dividing 250 by 81, we get 3 with a remainder of 7.
The next digit of our result is 3. 
Result so far: 1168656.9753
If we take 243 away from 250, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 13:
70 divided by 81 is 0 with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 1168656.9753
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 14:
700 divided by 81 is 8 with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 1168656.975308
Subtract 648 from 700 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 15:
If we divide 520 by 81, we get 6 and a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 1168656.9753086
Subtract 486 from 520 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 16:
81 goes into 340 4 times with a remainder of 16.
The next digit of our result is 4. 
Result so far: 1168656.97530864
If we subtract 324 from 340, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 1168656.97530864 with a remaining 1.6e-08.