Let's divide 351025 by 23
The aim is to understand the frequency of 23 in 351025.

Going ahead to step 1:
When dividing 3 by 23, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 23

Let's proceed to step 2:
The number 23 fits into 35 1 times, leaving a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 12 after subtracting 23 from 35.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 23

Going ahead to step 3:
When dividing 121 by 23, we get 5 with a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 115 away from 121, we end up with 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 23

Moving on to step 4:
When dividing 60 by 23, we get 2 with a remainder of 14.
The number 2 becomes the next digit in our result. 
Result so far: 152.0
Deduct 46 from 60 and we're left with 14.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 23

Moving on to step 5:
The number 23 fits into 142 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 1526.0
Deduct 138 from 142 and we're left with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 23

Let's proceed to step 6:
23 can be fit into 45 1 times, resulting in a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 15261.0
Subtract 23 from 45 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 7:
The number 23 fits into 220 9 times, leaving a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 15261.9
Subtracting 207 from 220 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 8:
When dividing 130 by 23, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 15261.95
Subtracting 115 from 130 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 9:
If we divide 150 by 23, we get 6 and a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 15261.956
The remainder is 12 after subtracting 138 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 10:
23 can be fit into 120 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 15261.9565
Deduct 115 from 120 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
50 divided by 23 is 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 15261.95652
The remainder is 4 after subtracting 46 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 12:
23 can be fit into 40 1 times, resulting in a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 15261.956521
If we subtract 23 from 40, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 13:
The number 23 fits into 170 7 times, leaving a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 15261.9565217
Deduct 161 from 170 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 14:
If we divide 90 by 23, we get 3 and a remainder of 21.
The number 3 becomes the next digit in our result. 
Result so far: 15261.95652173
The remainder is 21 after subtracting 69 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

The quotient of the division is 15261.95652173, and the remainder is 2.1e-08.