Let's divide 26146737 by 520
The aim is to understand the frequency of 520 in 26146737.

On to step 1:
520 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 520

Going ahead to step 2:
The number 520 fits into 26 0 times, leaving a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 26, we get 26.
Include the next digit (1) from the dividend after 26, then repeat: 261 / 520

On to step 3:
When dividing 261 by 520, we get 0 with a remainder of 261.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 261, we get 261.
Grab the next digit (4) from the dividend, add it to 261, then carry on: 2614 / 520

On to step 4:
520 can be fit into 2614 5 times, resulting in a remainder of 14.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 14 after subtracting 2600 from 2614.
Append the next digit (6) from the dividend to 14 and continue with: 146 / 520

On to step 5:
520 can be fit into 146 0 times, resulting in a remainder of 146.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
Subtracting 0 from 146 leaves us with 146.
Append the next digit (7) from the dividend to 146 and continue with: 1467 / 520

Going ahead to step 6:
The number 520 fits into 1467 2 times, leaving a remainder of 427.
The next digit of our result is 2. 
Result so far: 502.0
The remainder is 427 after subtracting 1040 from 1467.
Bring next digit (3) of the dividend behind the 427 and repeat the process: 4273 / 520

On to step 7:
520 can be fit into 4273 8 times, resulting in a remainder of 113.
The number 8 becomes the next digit in our result. 
Result so far: 5028.0
Subtracting 4160 from 4273 leaves us with 113.
Grab the next digit (7) from the dividend, add it to 113, then carry on: 1137 / 520

Going ahead to step 8:
520 can be fit into 1137 2 times, resulting in a remainder of 97.
Put 2 as the next digit of the answer. 
Result so far: 50282.0
Subtract 1040 from 1137 to get 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

On to step 9:
The number 520 fits into 970 1 times, leaving a remainder of 450.
The next digit of our result is 1. 
Result so far: 50282.1
Deduct 520 from 970 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 10:
520 can be fit into 4500 8 times, resulting in a remainder of 340.
The next digit of our result is 8. 
Result so far: 50282.18
Deduct 4160 from 4500 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Let's proceed to step 11:
3400 divided by 520 is 6 with a remainder of 280.
The number 6 becomes the next digit in our result. 
Result so far: 50282.186
Subtracting 3120 from 3400 leaves us 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.

Going ahead to step 12:
2800 divided by 520 is 5 with a remainder of 200.
The next digit of our result is 5. 
Result so far: 50282.1865
Subtracting 2600 from 2800 leaves us with 200.
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 13:
If we divide 2000 by 520, we get 3 and a remainder of 440.
Write down 3 as next digit of the result. 
Result so far: 50282.18653
Subtracting 1560 from 2000 leaves us 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.

Step 14:
The number 520 fits into 4400 8 times, leaving a remainder of 240.
Use 8 as the next digit of our solution. 
Result so far: 50282.186538
If we take 4160 away from 4400, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 15:
If we divide 2400 by 520, we get 4 and a remainder of 320.
Write down 4 as next digit of the result. 
Result so far: 50282.1865384
If we subtract 2080 from 2400, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 16:
520 goes into 3200 6 times with a remainder of 80.
Write down 6 as next digit of the result. 
Result so far: 50282.18653846
Deduct 3120 from 3200 and we're left 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.

After the division, we end up with 50282.18653846 and a remainder of 8e-08.