Let's divide 73033440 by 81
The aim is to understand the frequency of 81 in 73033440.

On to step 1:
The number 81 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 81

Advancing to step 2:
73 divided by 81 is 0 with a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Include the next digit (0) from the dividend after 73, then repeat: 730 / 81

Let's proceed to step 3:
When dividing 730 by 81, we get 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtract 729 from 730 to get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 81

Step 4:
When dividing 13 by 81, we get 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 90.0
If we subtract 0 from 13, we get 13.
Include the next digit (3) from the dividend after 13, then repeat: 133 / 81

On to step 5:
81 goes into 133 1 times with a remainder of 52.
Put 1 as the next digit of the answer. 
Result so far: 901.0
Subtracting 81 from 133 leaves us with 52.
Take the next digit (4) from the dividend and append it to 52, then repeat: 524 / 81

Advancing to step 6:
81 can be fit into 524 6 times, resulting in a remainder of 38.
Use 6 as the next digit of our solution. 
Result so far: 9016.0
Subtracting 486 from 524 leaves us with 38.
Fetch the next digit (4) from the dividend, attach it to 38 and continue: 384 / 81

Step 7:
The number 81 fits into 384 4 times, leaving a remainder of 60.
Record the quotient 4 as the next digit in the result. 
Result so far: 90164.0
Subtracting 324 from 384 leaves us with 60.
Fetch the next digit (0) from the dividend, attach it to 60 and continue: 600 / 81

Advancing to step 8:
81 goes into 600 7 times with a remainder of 33.
Use 7 as the next digit of our solution. 
Result so far: 901647.0
Subtracting 567 from 600 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 9:
81 goes into 330 4 times with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 901647.4
Subtract 324 from 330 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
81 can be fit into 60 0 times, resulting in a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 901647.4
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 11:
81 can be fit into 600 7 times, resulting in a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 901647.407
Deduct 567 from 600 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 12:
When dividing 330 by 81, we get 4 with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 901647.4074
If we subtract 324 from 330, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 13:
When dividing 60 by 81, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 901647.4074
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 14:
When dividing 600 by 81, we get 7 with a remainder of 33.
Put 7 as the next digit of the answer. 
Result so far: 901647.407407
Subtract 567 from 600 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 15:
330 divided by 81 is 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 901647.4074074
The remainder is 6 after subtracting 324 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 16:
81 can be fit into 60 0 times, resulting in a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 901647.4074074
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 901647.4074074 with a remainder of 6e-08.