We look at the division of 80635000 by 73 
The aim is to understand the frequency of 73 in 80635000.

Step 1:
73 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 73

Advancing to step 2:
The number 73 fits into 80 1 times, leaving a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 73 away from 80, we end up with 7.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 73

Advancing to step 3:
If we divide 76 by 73, we get 1 and a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Deduct 73 from 76 and we're left with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 73

Going ahead to step 4:
33 divided by 73 is 0 with a remainder of 33.
Record the quotient 0 as the next digit in the result. 
Result so far: 110.0
Subtract 0 from 33 to get 33.
Append the next digit (5) from the dividend to 33 and continue with: 335 / 73

Let's proceed to step 5:
When dividing 335 by 73, we get 4 with a remainder of 43.
Use 4 as the next digit of our solution. 
Result so far: 1104.0
If we take 292 away from 335, we end up with 43.
Bring next digit (0) of the dividend behind the 43 and repeat the process: 430 / 73

Moving on to step 6:
73 goes into 430 5 times with a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 11045.0
Subtract 365 from 430 to get 65.
Take the next digit (0) from the dividend and append it to 65, then repeat: 650 / 73

Let's proceed to step 7:
650 divided by 73 is 8 with a remainder of 66.
Put 8 as the next digit of the answer. 
Result so far: 110458.0
The remainder is 66 after subtracting 584 from 650.
Grab the next digit (0) from the dividend, add it to 66, then carry on: 660 / 73

Moving on to step 8:
The number 73 fits into 660 9 times, leaving a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 1104589.0
The remainder is 3 after subtracting 657 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
When dividing 30 by 73, we get 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 1104589.0
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
73 goes into 300 4 times with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 1104589.04
Subtracting 292 from 300 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
73 can be fit into 80 1 times, resulting in a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 1104589.041
The remainder is 7 after subtracting 73 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 12:
73 can be fit into 70 0 times, resulting in a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 1104589.041
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 13:
When dividing 700 by 73, we get 9 with a remainder of 43.
Write down 9 as next digit of the result. 
Result so far: 1104589.04109
The remainder is 43 after subtracting 657 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 14:
The number 73 fits into 430 5 times, leaving a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 1104589.041095
Deduct 365 from 430 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 15:
650 divided by 73 is 8 with a remainder of 66.
Write down 8 as next digit of the result. 
Result so far: 1104589.0410958
If we subtract 584 from 650, 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 16:
The number 73 fits into 660 9 times, leaving a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 1104589.04109589
If we take 657 away from 660, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final outcome is 1104589.04109589, with a leftover of 3e-09.