We divide 25966103 by 520
The aim is to understand the frequency of 520 in 25966103.

Advancing to step 1:
The number 520 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 520

Moving on to step 2:
If we divide 25 by 520, we get 0 and a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Bring next digit (9) of the dividend behind the 25 and repeat the process: 259 / 520

On to step 3:
520 goes into 259 0 times with a remainder of 259.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 259 after subtracting 0 from 259.
Take the next digit (6) from the dividend and append it to 259, then repeat: 2596 / 520

Advancing to step 4:
2596 divided by 520 is 4 with a remainder of 516.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 2080 from 2596 and we're left with 516.
Bring next digit (6) of the dividend behind the 516 and repeat the process: 5166 / 520

Step 5:
5166 divided by 520 is 9 with a remainder of 486.
The number 9 becomes the next digit in our result. 
Result so far: 49.0
The remainder is 486 after subtracting 4680 from 5166.
Bring next digit (1) of the dividend behind the 486 and repeat the process: 4861 / 520

Going ahead to step 6:
520 can be fit into 4861 9 times, resulting in a remainder of 181.
The number 9 becomes the next digit in our result. 
Result so far: 499.0
Deduct 4680 from 4861 and we're left with 181.
Append the next digit (0) from the dividend to 181 and continue with: 1810 / 520

Advancing to step 7:
The number 520 fits into 1810 3 times, leaving a remainder of 250.
Record the quotient 3 as the next digit in the result. 
Result so far: 4993.0
Subtract 1560 from 1810 to get 250.
Include the next digit (3) from the dividend after 250, then repeat: 2503 / 520

Advancing to step 8:
520 goes into 2503 4 times with a remainder of 423.
The number 4 becomes the next digit in our result. 
Result so far: 49934.0
The remainder is 423 after subtracting 2080 from 2503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

Going ahead to step 9:
520 goes into 4230 8 times with a remainder of 70.
Record the quotient 8 as the next digit in the result. 
Result so far: 49934.8
Subtract 4160 from 4230 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 10:
520 can be fit into 700 1 times, resulting in a remainder of 180.
Use 1 as the next digit of our solution. 
Result so far: 49934.81
If we subtract 520 from 700, we get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 11:
1800 divided by 520 is 3 with a remainder of 240.
Write down 3 as next digit of the result. 
Result so far: 49934.813
If we subtract 1560 from 1800, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 12:
520 goes into 2400 4 times with a remainder of 320.
The next digit of our result is 4. 
Result so far: 49934.8134
Deduct 2080 from 2400 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 13:
When dividing 3200 by 520, we get 6 with a remainder of 80.
Use 6 as the next digit of our solution. 
Result so far: 49934.81346
Subtracting 3120 from 3200 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 14:
When dividing 800 by 520, we get 1 with a remainder of 280.
The number 1 becomes the next digit in our result. 
Result so far: 49934.813461
If we take 520 away from 800, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 15:
The number 520 fits into 2800 5 times, leaving a remainder of 200.
The number 5 becomes the next digit in our result. 
Result so far: 49934.8134615
The remainder is 200 after subtracting 2600 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 16:
2000 divided by 520 is 3 with a remainder of 440.
Put 3 as the next digit of the answer. 
Result so far: 49934.81346153
If we take 1560 away from 2000, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

The final result is 49934.81346153 with a remainder of 4.4e-07.