We look at the division of 526039 by 51 
The aim is to understand the frequency of 51 in 526039.

On to step 1:
51 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 51

Advancing to step 2:
51 can be fit into 52 1 times, resulting in a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 1 after subtracting 51 from 52.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 51

Moving on to step 3:
16 divided by 51 is 0 with a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 16 to get 16.
Take the next digit (0) from the dividend and append it to 16, then repeat: 160 / 51

Going ahead to step 4:
When dividing 160 by 51, we get 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 103.0
Deduct 153 from 160 and we're left with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 51

On to step 5:
51 goes into 73 1 times with a remainder of 22.
The next digit of our result is 1. 
Result so far: 1031.0
The remainder is 22 after subtracting 51 from 73.
Append the next digit (9) from the dividend to 22 and continue with: 229 / 51

Let's proceed to step 6:
229 divided by 51 is 4 with a remainder of 25.
The number 4 becomes the next digit in our result. 
Result so far: 10314.0
If we subtract 204 from 229, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 7:
When dividing 250 by 51, we get 4 with a remainder of 46.
Write down 4 as next digit of the result. 
Result so far: 10314.4
Deduct 204 from 250 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 8:
When dividing 460 by 51, we get 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 10314.49
If we take 459 away from 460, we end up with 1.
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 9:
The number 51 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 10314.49
Subtracting 0 from 10 leaves us with 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 10:
100 divided by 51 is 1 with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 10314.4901
If we subtract 51 from 100, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 11:
51 can be fit into 490 9 times, resulting in a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 10314.49019
Deduct 459 from 490 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 12:
If we divide 310 by 51, we get 6 and a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 10314.490196
The remainder is 4 after subtracting 306 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 13:
The number 51 fits into 40 0 times, leaving a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 10314.490196
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 14:
51 goes into 400 7 times with a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 10314.49019607
Deduct 357 from 400 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The quotient of the division is 10314.49019607, and the remainder is 4.3e-08.