We look at the division of 7249154 by 91 
The aim is to understand the frequency of 91 in 7249154.

Going ahead to step 1:
91 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
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 91

Moving on to step 2:
When dividing 72 by 91, we get 0 with a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Bring next digit (4) of the dividend behind the 72 and repeat the process: 724 / 91

Step 3:
91 goes into 724 7 times with a remainder of 87.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Deduct 637 from 724 and we're left with 87.
Append the next digit (9) from the dividend to 87 and continue with: 879 / 91

Moving on to step 4:
879 divided by 91 is 9 with a remainder of 60.
Put 9 as the next digit of the answer. 
Result so far: 79.0
If we subtract 819 from 879, we get 60.
Append the next digit (1) from the dividend to 60 and continue with: 601 / 91

Going ahead to step 5:
If we divide 601 by 91, we get 6 and a remainder of 55.
Write down 6 as next digit of the result. 
Result so far: 796.0
Deduct 546 from 601 and we're left with 55.
Grab the next digit (5) from the dividend, add it to 55, then carry on: 555 / 91

Moving on to step 6:
If we divide 555 by 91, we get 6 and a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 7966.0
If we take 546 away from 555, we end up with 9.
Append the next digit (4) from the dividend to 9 and continue with: 94 / 91

Let's proceed to step 7:
When dividing 94 by 91, we get 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 79661.0
Subtracting 91 from 94 leaves us 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.

On to step 8:
If we divide 30 by 91, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 79661.0
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.

Moving on to step 9:
When dividing 300 by 91, we get 3 with a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 79661.03
Subtract 273 from 300 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 10:
91 goes into 270 2 times with a remainder of 88.
Record the quotient 2 as the next digit in the result. 
Result so far: 79661.032
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.

Let's proceed to step 11:
91 goes into 880 9 times with a remainder of 61.
Record the quotient 9 as the next digit in the result. 
Result so far: 79661.0329
If we subtract 819 from 880, we 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.

On to step 12:
91 goes into 610 6 times with a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 79661.03296
Subtracting 546 from 610 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 13:
91 goes into 640 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 79661.032967
If we subtract 637 from 640, we 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.

On to step 14:
If we divide 30 by 91, we get 0 and a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 79661.032967
If we take 0 away from 30, we end up 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.

Going ahead to step 15:
300 divided by 91 is 3 with a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 79661.03296703
If we take 273 away from 300, we end up 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.

In conclusion, the division gives 79661.03296703 with a balance of 2.7e-08.