23771643 ÷ 259 
The aim is to understand the frequency of 259 in 23771643.

Advancing to step 1:
2 divided by 259 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 259

Advancing to step 2:
When dividing 23 by 259, we get 0 with a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 23 leaves us with 23.
Grab the next digit (7) from the dividend, add it to 23, then carry on: 237 / 259

Step 3:
259 goes into 237 0 times with a remainder of 237.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 237 and we're left with 237.
Fetch the next digit (7) from the dividend, attach it to 237 and continue: 2377 / 259

Let's proceed to step 4:
The number 259 fits into 2377 9 times, leaving a remainder of 46.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 2331 from 2377 leaves us with 46.
Append the next digit (1) from the dividend to 46 and continue with: 461 / 259

Going ahead to step 5:
When dividing 461 by 259, we get 1 with a remainder of 202.
Record the quotient 1 as the next digit in the result. 
Result so far: 91.0
Subtract 259 from 461 to get 202.
Append the next digit (6) from the dividend to 202 and continue with: 2026 / 259

Step 6:
When dividing 2026 by 259, we get 7 with a remainder of 213.
Put 7 as the next digit of the answer. 
Result so far: 917.0
Subtract 1813 from 2026 to get 213.
Take the next digit (4) from the dividend and append it to 213, then repeat: 2134 / 259

Moving on to step 7:
If we divide 2134 by 259, we get 8 and a remainder of 62.
Use 8 as the next digit of our solution. 
Result so far: 9178.0
Subtract 2072 from 2134 to get 62.
Fetch the next digit (3) from the dividend, attach it to 62 and continue: 623 / 259

Moving on to step 8:
259 can be fit into 623 2 times, resulting in a remainder of 105.
The number 2 becomes the next digit in our result. 
Result so far: 91782.0
If we subtract 518 from 623, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Going ahead to step 9:
259 goes into 1050 4 times with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 91782.4
If we take 1036 away from 1050, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
When dividing 140 by 259, we get 0 with a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 91782.4
Subtract 0 from 140 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 11:
259 can be fit into 1400 5 times, resulting in a remainder of 105.
Write down 5 as next digit of the result. 
Result so far: 91782.405
If we subtract 1295 from 1400, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Let's proceed to step 12:
When dividing 1050 by 259, we get 4 with a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 91782.4054
If we take 1036 away from 1050, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 13:
When dividing 140 by 259, we get 0 with a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 91782.4054
Subtracting 0 from 140 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 14:
If we divide 1400 by 259, we get 5 and a remainder of 105.
The next digit of our result is 5. 
Result so far: 91782.405405
Deduct 1295 from 1400 and we're left with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Let's proceed to step 15:
1050 divided by 259 is 4 with a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 91782.4054054
If we subtract 1036 from 1050, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 16:
259 goes into 140 0 times with a remainder of 140.
Write down 0 as next digit of the result. 
Result so far: 91782.4054054
Deduct 0 from 140 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

The final outcome is 91782.4054054, with a leftover of 1.4e-07.