We look at the division of 837425 by 51 
The aim is to understand the frequency of 51 in 837425.

Moving on to step 1:
When dividing 8 by 51, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 51

On to step 2:
When dividing 83 by 51, we get 1 with a remainder of 32.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 32 after subtracting 51 from 83.
Include the next digit (7) from the dividend after 32, then repeat: 327 / 51

Moving on to step 3:
If we divide 327 by 51, we get 6 and a remainder of 21.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we subtract 306 from 327, we get 21.
Append the next digit (4) from the dividend to 21 and continue with: 214 / 51

Going ahead to step 4:
The number 51 fits into 214 4 times, leaving a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 164.0
If we take 204 away from 214, we end up with 10.
Append the next digit (2) from the dividend to 10 and continue with: 102 / 51

Let's proceed to step 5:
If we divide 102 by 51, we get 2 and a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 1642.0
If we take 102 away from 102, we end up with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 51

Advancing to step 6:
The number 51 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 16420.0
If we take 0 away from 5, we end up 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.

Let's proceed to step 7:
The number 51 fits into 50 0 times, leaving a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 16420.0
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 8:
When dividing 500 by 51, we get 9 with a remainder of 41.
The next digit of our result is 9. 
Result so far: 16420.09
If we take 459 away from 500, we end up with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 9:
The number 51 fits into 410 8 times, leaving a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 16420.098
If we take 408 away from 410, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
51 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 16420.098
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
The number 51 fits into 200 3 times, leaving a remainder of 47.
Record the quotient 3 as the next digit in the result. 
Result so far: 16420.09803
Subtracting 153 from 200 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 12:
The number 51 fits into 470 9 times, leaving a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 16420.098039
Subtract 459 from 470 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 13:
If we divide 110 by 51, we get 2 and a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 16420.0980392
Subtract 102 from 110 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 14:
When dividing 80 by 51, we get 1 with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 16420.09803921
Subtract 51 from 80 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The quotient of the division is 16420.09803921, and the remainder is 2.9e-08.