We divide 157275 by 91
The aim is to understand the frequency of 91 in 157275.

On to step 1:
91 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 91

Step 2:
91 can be fit into 15 0 times, resulting in a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 91

Let's proceed to step 3:
91 can be fit into 157 1 times, resulting in a remainder of 66.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 91 from 157, we get 66.
Take the next digit (2) from the dividend and append it to 66, then repeat: 662 / 91

On to step 4:
662 divided by 91 is 7 with a remainder of 25.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
The remainder is 25 after subtracting 637 from 662.
Take the next digit (7) from the dividend and append it to 25, then repeat: 257 / 91

Moving on to step 5:
257 divided by 91 is 2 with a remainder of 75.
Record the quotient 2 as the next digit in the result. 
Result so far: 172.0
Subtract 182 from 257 to get 75.
Bring next digit (5) of the dividend behind the 75 and repeat the process: 755 / 91

On to step 6:
When dividing 755 by 91, we get 8 with a remainder of 27.
The next digit of our result is 8. 
Result so far: 1728.0
Subtracting 728 from 755 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
When dividing 270 by 91, we get 2 with a remainder of 88.
Use 2 as the next digit of our solution. 
Result so far: 1728.2
Deduct 182 from 270 and we're left with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Going ahead to step 8:
The number 91 fits into 880 9 times, leaving a remainder of 61.
The number 9 becomes the next digit in our result. 
Result so far: 1728.29
Subtract 819 from 880 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Moving on to step 9:
610 divided by 91 is 6 with a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 1728.296
The remainder is 64 after subtracting 546 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 10:
When dividing 640 by 91, we get 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 1728.2967
Deduct 637 from 640 and we're left 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.

Step 11:
The number 91 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 1728.2967
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.

Let's proceed to step 12:
91 goes into 300 3 times with a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 1728.296703
The remainder is 27 after subtracting 273 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 13:
The number 91 fits into 270 2 times, leaving a remainder of 88.
The number 2 becomes the next digit in our result. 
Result so far: 1728.2967032
If we take 182 away from 270, we end up with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 14:
When dividing 880 by 91, we get 9 with a remainder of 61.
Record the quotient 9 as the next digit in the result. 
Result so far: 1728.29670329
Subtracting 819 from 880 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.

After the division, we end up with 1728.29670329 and a remainder of 6.1e-08.