We're dividing 887340 by 81 
The aim is to understand the frequency of 81 in 887340.

Let's proceed to step 1:
81 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 81

Step 2:
If we divide 88 by 81, we get 1 and a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 81 from 88, we get 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 81

Going ahead to step 3:
81 can be fit into 77 0 times, resulting in a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 77 leaves us with 77.
Append the next digit (3) from the dividend to 77 and continue with: 773 / 81

Moving on to step 4:
81 can be fit into 773 9 times, resulting in a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 109.0
If we take 729 away from 773, we end up with 44.
Take the next digit (4) from the dividend and append it to 44, then repeat: 444 / 81

Moving on to step 5:
81 can be fit into 444 5 times, resulting in a remainder of 39.
The next digit of our result is 5. 
Result so far: 1095.0
Subtract 405 from 444 to get 39.
Fetch the next digit (0) from the dividend, attach it to 39 and continue: 390 / 81

Advancing to step 6:
When dividing 390 by 81, we get 4 with a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 10954.0
Deduct 324 from 390 and we're left with 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 7:
The number 81 fits into 660 8 times, leaving a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 10954.8
If we subtract 648 from 660, we get 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 8:
81 goes into 120 1 times with a remainder of 39.
The next digit of our result is 1. 
Result so far: 10954.81
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.

Step 9:
390 divided by 81 is 4 with a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 10954.814
If we take 324 away from 390, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 10:
81 goes into 660 8 times with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 10954.8148
The remainder is 12 after subtracting 648 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 11:
The number 81 fits into 120 1 times, leaving a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 10954.81481
Subtracting 81 from 120 leaves us with 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 12:
If we divide 390 by 81, we get 4 and a remainder of 66.
Use 4 as the next digit of our solution. 
Result so far: 10954.814814
Subtracting 324 from 390 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 13:
660 divided by 81 is 8 with a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 10954.8148148
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.

On to step 14:
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: 10954.81481481
If we subtract 81 from 120, we 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.

After the division, we end up with 10954.81481481 and a remainder of 3.9e-08.