We divide 417305 by 81
The aim is to understand the frequency of 81 in 417305.

Let's proceed to step 1:
81 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 81

Advancing to step 2:
81 can be fit into 41 0 times, resulting in a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 41 to get 41.
Fetch the next digit (7) from the dividend, attach it to 41 and continue: 417 / 81

Moving on to step 3:
81 can be fit into 417 5 times, resulting in a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 405 from 417 and we're left with 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 81

Advancing to step 4:
81 goes into 123 1 times with a remainder of 42.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Subtract 81 from 123 to get 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 81

Going ahead to step 5:
If we divide 420 by 81, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 515.0
If we subtract 405 from 420, we get 15.
Append the next digit (5) from the dividend to 15 and continue with: 155 / 81

Advancing to step 6:
If we divide 155 by 81, we get 1 and a remainder of 74.
Record the quotient 1 as the next digit in the result. 
Result so far: 5151.0
Subtracting 81 from 155 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 7:
81 can be fit into 740 9 times, resulting in a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 5151.9
Subtracting 729 from 740 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 8:
The number 81 fits into 110 1 times, leaving a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 5151.91
Deduct 81 from 110 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 9:
81 can be fit into 290 3 times, resulting in a remainder of 47.
Use 3 as the next digit of our solution. 
Result so far: 5151.913
Subtract 243 from 290 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 10:
When dividing 470 by 81, we get 5 with a remainder of 65.
The next digit of our result is 5. 
Result so far: 5151.9135
If we subtract 405 from 470, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 11:
The number 81 fits into 650 8 times, leaving a remainder of 2.
The next digit of our result is 8. 
Result so far: 5151.91358
Deduct 648 from 650 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 12:
If we divide 20 by 81, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 5151.91358
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
200 divided by 81 is 2 with a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 5151.9135802
Deduct 162 from 200 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 14:
81 can be fit into 380 4 times, resulting in a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 5151.91358024
The remainder is 56 after subtracting 324 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final result is 5151.91358024 with a remainder of 5.6e-08.