We look at the division of 30715037 by 181 
The aim is to understand the frequency of 181 in 30715037.

Step 1:
The number 181 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 181

Step 2:
If we divide 30 by 181, we get 0 and a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Fetch the next digit (7) from the dividend, attach it to 30 and continue: 307 / 181

Advancing to step 3:
When dividing 307 by 181, we get 1 with a remainder of 126.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 181 from 307 and we're left with 126.
Append the next digit (1) from the dividend to 126 and continue with: 1261 / 181

Advancing to step 4:
1261 divided by 181 is 6 with a remainder of 175.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtracting 1086 from 1261 leaves us with 175.
Append the next digit (5) from the dividend to 175 and continue with: 1755 / 181

Advancing to step 5:
1755 divided by 181 is 9 with a remainder of 126.
Record the quotient 9 as the next digit in the result. 
Result so far: 169.0
Subtracting 1629 from 1755 leaves us with 126.
Fetch the next digit (0) from the dividend, attach it to 126 and continue: 1260 / 181

Going ahead to step 6:
1260 divided by 181 is 6 with a remainder of 174.
The number 6 becomes the next digit in our result. 
Result so far: 1696.0
Deduct 1086 from 1260 and we're left with 174.
Bring next digit (3) of the dividend behind the 174 and repeat the process: 1743 / 181

Advancing to step 7:
181 goes into 1743 9 times with a remainder of 114.
Put 9 as the next digit of the answer. 
Result so far: 16969.0
The remainder is 114 after subtracting 1629 from 1743.
Append the next digit (7) from the dividend to 114 and continue with: 1147 / 181

On to step 8:
181 can be fit into 1147 6 times, resulting in a remainder of 61.
Record the quotient 6 as the next digit in the result. 
Result so far: 169696.0
Subtracting 1086 from 1147 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 9:
181 can be fit into 610 3 times, resulting in a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 169696.3
If we subtract 543 from 610, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Let's proceed to step 10:
181 can be fit into 670 3 times, resulting in a remainder of 127.
The next digit of our result is 3. 
Result so far: 169696.33
Subtracting 543 from 670 leaves us with 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

The final outcome is 169696.33, with a leftover of 0.127.