We divide 91521649 by 23
The aim is to understand the frequency of 23 in 91521649.

Let's proceed to step 1:
9 divided by 23 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 23

Step 2:
The number 23 fits into 91 3 times, leaving a remainder of 22.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 22 after subtracting 69 from 91.
Append the next digit (5) from the dividend to 22 and continue with: 225 / 23

Going ahead to step 3:
When dividing 225 by 23, we get 9 with a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
The remainder is 18 after subtracting 207 from 225.
Grab the next digit (2) from the dividend, add it to 18, then carry on: 182 / 23

Moving on to step 4:
The number 23 fits into 182 7 times, leaving a remainder of 21.
Put 7 as the next digit of the answer. 
Result so far: 397.0
Deduct 161 from 182 and we're left with 21.
Fetch the next digit (1) from the dividend, attach it to 21 and continue: 211 / 23

Moving on to step 5:
23 can be fit into 211 9 times, resulting in a remainder of 4.
The next digit of our result is 9. 
Result so far: 3979.0
Subtract 207 from 211 to get 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 23

Let's proceed to step 6:
46 divided by 23 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 39792.0
Subtracting 46 from 46 leaves us with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 23

Step 7:
The number 23 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 397920.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 23

Step 8:
When dividing 49 by 23, we get 2 with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 3979202.0
Subtracting 46 from 49 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.

Advancing to step 9:
The number 23 fits into 30 1 times, leaving a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 3979202.1
If we take 23 away from 30, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 10:
If we divide 70 by 23, we get 3 and a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 3979202.13
The remainder is 1 after subtracting 69 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 11:
When dividing 10 by 23, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 3979202.13
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 12:
The number 23 fits into 100 4 times, leaving a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 3979202.1304
Subtract 92 from 100 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 13:
When dividing 80 by 23, we get 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 3979202.13043
If we take 69 away from 80, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 14:
23 goes into 110 4 times with a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 3979202.130434
If we take 92 away from 110, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 15:
When dividing 180 by 23, we get 7 with a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 3979202.1304347
If we take 161 away from 180, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 16:
190 divided by 23 is 8 with a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 3979202.13043478
The remainder is 6 after subtracting 184 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

After the division, we end up with 3979202.13043478 and a remainder of 6e-09.