We look at the division of 72952420 by 83 
The aim is to understand the frequency of 83 in 72952420.

On to step 1:
7 divided by 83 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 83

Step 2:
72 divided by 83 is 0 with a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Include the next digit (9) from the dividend after 72, then repeat: 729 / 83

Advancing to step 3:
When dividing 729 by 83, we get 8 with a remainder of 65.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 65 after subtracting 664 from 729.
Fetch the next digit (5) from the dividend, attach it to 65 and continue: 655 / 83

Step 4:
When dividing 655 by 83, we get 7 with a remainder of 74.
Write down 7 as next digit of the result. 
Result so far: 87.0
If we subtract 581 from 655, we get 74.
Fetch the next digit (2) from the dividend, attach it to 74 and continue: 742 / 83

On to step 5:
742 divided by 83 is 8 with a remainder of 78.
Use 8 as the next digit of our solution. 
Result so far: 878.0
If we subtract 664 from 742, we get 78.
Fetch the next digit (4) from the dividend, attach it to 78 and continue: 784 / 83

Let's proceed to step 6:
83 can be fit into 784 9 times, resulting in a remainder of 37.
The number 9 becomes the next digit in our result. 
Result so far: 8789.0
If we take 747 away from 784, we end up with 37.
Bring next digit (2) of the dividend behind the 37 and repeat the process: 372 / 83

Going ahead to step 7:
83 can be fit into 372 4 times, resulting in a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 87894.0
Deduct 332 from 372 and we're left with 40.
Append the next digit (0) from the dividend to 40 and continue with: 400 / 83

On to step 8:
400 divided by 83 is 4 with a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 878944.0
Subtracting 332 from 400 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 9:
When dividing 680 by 83, we get 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 878944.8
Subtract 664 from 680 to 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.

Advancing to step 10:
160 divided by 83 is 1 with a remainder of 77.
Record the quotient 1 as the next digit in the result. 
Result so far: 878944.81
Subtract 83 from 160 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Advancing to step 11:
If we divide 770 by 83, we get 9 and a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 878944.819
Subtracting 747 from 770 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 12:
83 goes into 230 2 times with a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 878944.8192
If we take 166 away from 230, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 13:
83 can be fit into 640 7 times, resulting in a remainder of 59.
Record the quotient 7 as the next digit in the result. 
Result so far: 878944.81927
Subtracting 581 from 640 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 14:
83 can be fit into 590 7 times, resulting in a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 878944.819277
Deduct 581 from 590 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The final result is 878944.819277 with a remainder of 9e-07.