We divide 12783 by 81
The aim is to understand the frequency of 81 in 12783.

Moving on to step 1:
When dividing 1 by 81, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 81

Let's proceed to step 2:
81 goes into 12 0 times with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (7) from the dividend to 12 and continue with: 127 / 81

Let's proceed to step 3:
81 can be fit into 127 1 times, resulting in a remainder of 46.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 81 from 127 and we're left with 46.
Grab the next digit (8) from the dividend, add it to 46, then carry on: 468 / 81

Let's proceed to step 4:
468 divided by 81 is 5 with a remainder of 63.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
The remainder is 63 after subtracting 405 from 468.
Include the next digit (3) from the dividend after 63, then repeat: 633 / 81

Advancing to step 5:
If we divide 633 by 81, we get 7 and a remainder of 66.
Put 7 as the next digit of the answer. 
Result so far: 157.0
If we subtract 567 from 633, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 6:
660 divided by 81 is 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 157.8
Subtracting 648 from 660 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
81 goes into 120 1 times with a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 157.81
Subtract 81 from 120 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 8:
If we divide 390 by 81, we get 4 and a remainder of 66.
Put 4 as the next digit of the answer. 
Result so far: 157.814
The remainder is 66 after subtracting 324 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 9:
If we divide 660 by 81, we get 8 and a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 157.8148
Deduct 648 from 660 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 10:
When dividing 120 by 81, we get 1 with a remainder of 39.
The next digit of our result is 1. 
Result so far: 157.81481
The remainder is 39 after subtracting 81 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 11:
81 goes into 390 4 times with a remainder of 66.
The number 4 becomes the next digit in our result. 
Result so far: 157.814814
If we subtract 324 from 390, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 12:
660 divided by 81 is 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 157.8148148
If we take 648 away from 660, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 13:
81 can be fit into 120 1 times, resulting in a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 157.81481481
The remainder is 39 after subtracting 81 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Our division results in 157.81481481 with a remaining 3.9e-08.