72171188 divided by 73 
The aim is to understand the frequency of 73 in 72171188.

Moving on to step 1:
73 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 73

Moving on to step 2:
If we divide 72 by 73, we get 0 and a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Append the next digit (1) from the dividend to 72 and continue with: 721 / 73

Let's proceed to step 3:
If we divide 721 by 73, we get 9 and a remainder of 64.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 657 from 721 leaves us with 64.
Fetch the next digit (7) from the dividend, attach it to 64 and continue: 647 / 73

On to step 4:
The number 73 fits into 647 8 times, leaving a remainder of 63.
Put 8 as the next digit of the answer. 
Result so far: 98.0
Subtracting 584 from 647 leaves us with 63.
Bring next digit (1) of the dividend behind the 63 and repeat the process: 631 / 73

On to step 5:
If we divide 631 by 73, we get 8 and a remainder of 47.
The next digit of our result is 8. 
Result so far: 988.0
If we subtract 584 from 631, we get 47.
Bring next digit (1) of the dividend behind the 47 and repeat the process: 471 / 73

Moving on to step 6:
73 goes into 471 6 times with a remainder of 33.
Record the quotient 6 as the next digit in the result. 
Result so far: 9886.0
If we subtract 438 from 471, we get 33.
Include the next digit (8) from the dividend after 33, then repeat: 338 / 73

Let's proceed to step 7:
The number 73 fits into 338 4 times, leaving a remainder of 46.
Write down 4 as next digit of the result. 
Result so far: 98864.0
If we take 292 away from 338, we end up with 46.
Bring next digit (8) of the dividend behind the 46 and repeat the process: 468 / 73

Moving on to step 8:
73 can be fit into 468 6 times, resulting in a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 988646.0
Subtract 438 from 468 to 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.

Let's proceed to step 9:
When dividing 300 by 73, we get 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 988646.4
The remainder is 8 after subtracting 292 from 300.
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 10:
When dividing 80 by 73, we get 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 988646.41
If we subtract 73 from 80, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 11:
70 divided by 73 is 0 with a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 988646.41
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 12:
700 divided by 73 is 9 with a remainder of 43.
The next digit of our result is 9. 
Result so far: 988646.4109
If we subtract 657 from 700, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 13:
73 goes into 430 5 times with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 988646.41095
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 14:
When dividing 650 by 73, we get 8 with a remainder of 66.
Use 8 as the next digit of our solution. 
Result so far: 988646.410958
Deduct 584 from 650 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.

Advancing to step 15:
If we divide 660 by 73, we get 9 and a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 988646.4109589
Subtract 657 from 660 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 16:
73 can be fit into 30 0 times, resulting in a remainder of 30.
The next digit of our result is 0. 
Result so far: 988646.4109589
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 988646.4109589 with a remaining 3e-08.