We look at the division of 73282161 by 181 
The aim is to understand the frequency of 181 in 73282161.

On to step 1:
181 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 181

Step 2:
73 divided by 181 is 0 with a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 73 leaves us with 73.
Grab the next digit (2) from the dividend, add it to 73, then carry on: 732 / 181

Let's proceed to step 3:
732 divided by 181 is 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 724 from 732, we get 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 181

Moving on to step 4:
181 can be fit into 88 0 times, resulting in a remainder of 88.
The next digit of our result is 0. 
Result so far: 40.0
Deduct 0 from 88 and we're left with 88.
Bring next digit (2) of the dividend behind the 88 and repeat the process: 882 / 181

Let's proceed to step 5:
When dividing 882 by 181, we get 4 with a remainder of 158.
Record the quotient 4 as the next digit in the result. 
Result so far: 404.0
Subtract 724 from 882 to get 158.
Grab the next digit (1) from the dividend, add it to 158, then carry on: 1581 / 181

Step 6:
The number 181 fits into 1581 8 times, leaving a remainder of 133.
Use 8 as the next digit of our solution. 
Result so far: 4048.0
If we take 1448 away from 1581, we end up with 133.
Bring next digit (6) of the dividend behind the 133 and repeat the process: 1336 / 181

Moving on to step 7:
1336 divided by 181 is 7 with a remainder of 69.
Use 7 as the next digit of our solution. 
Result so far: 40487.0
Subtracting 1267 from 1336 leaves us with 69.
Append the next digit (1) from the dividend to 69 and continue with: 691 / 181

Let's proceed to step 8:
181 goes into 691 3 times with a remainder of 148.
Put 3 as the next digit of the answer. 
Result so far: 404873.0
Subtracting 543 from 691 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

On to step 9:
181 goes into 1480 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 404873.8
Subtracting 1448 from 1480 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 10:
When dividing 320 by 181, we get 1 with a remainder of 139.
Use 1 as the next digit of our solution. 
Result so far: 404873.81
If we take 181 away from 320, we end up with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 11:
If we divide 1390 by 181, we get 7 and a remainder of 123.
Record the quotient 7 as the next digit in the result. 
Result so far: 404873.817
Deduct 1267 from 1390 and we're left with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Let's proceed to step 12:
The number 181 fits into 1230 6 times, leaving a remainder of 144.
The number 6 becomes the next digit in our result. 
Result so far: 404873.8176
Deduct 1086 from 1230 and we're left with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 13:
181 goes into 1440 7 times with a remainder of 173.
Record the quotient 7 as the next digit in the result. 
Result so far: 404873.81767
The remainder is 173 after subtracting 1267 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

Going ahead to step 14:
181 can be fit into 1730 9 times, resulting in a remainder of 101.
The number 9 becomes the next digit in our result. 
Result so far: 404873.817679
If we take 1629 away from 1730, we end up with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Advancing to step 15:
If we divide 1010 by 181, we get 5 and a remainder of 105.
Write down 5 as next digit of the result. 
Result so far: 404873.8176795
The remainder is 105 after subtracting 905 from 1010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

On to step 16:
1050 divided by 181 is 5 with a remainder of 145.
Record the quotient 5 as the next digit in the result. 
Result so far: 404873.81767955
Subtract 905 from 1050 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

After the division, we end up with 404873.81767955 and a remainder of 1.45e-07.