We look at the division of 961974 by 51 
The aim is to understand the frequency of 51 in 961974.

Advancing to step 1:
51 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (6) from the dividend and append it to 9, then repeat: 96 / 51

Going ahead to step 2:
If we divide 96 by 51, we get 1 and a remainder of 45.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 51 away from 96, we end up with 45.
Grab the next digit (1) from the dividend, add it to 45, then carry on: 451 / 51

Going ahead to step 3:
If we divide 451 by 51, we get 8 and a remainder of 43.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtracting 408 from 451 leaves us with 43.
Include the next digit (9) from the dividend after 43, then repeat: 439 / 51

Going ahead to step 4:
When dividing 439 by 51, we get 8 with a remainder of 31.
The number 8 becomes the next digit in our result. 
Result so far: 188.0
Deduct 408 from 439 and we're left with 31.
Take the next digit (7) from the dividend and append it to 31, then repeat: 317 / 51

Moving on to step 5:
When dividing 317 by 51, we get 6 with a remainder of 11.
Write down 6 as next digit of the result. 
Result so far: 1886.0
Deduct 306 from 317 and we're left with 11.
Grab the next digit (4) from the dividend, add it to 11, then carry on: 114 / 51

Going ahead to step 6:
114 divided by 51 is 2 with a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 18862.0
Subtract 102 from 114 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
120 divided by 51 is 2 with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 18862.2
If we take 102 away from 120, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 8:
If we divide 180 by 51, we get 3 and a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 18862.23
Subtracting 153 from 180 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 9:
51 goes into 270 5 times with a remainder of 15.
The next digit of our result is 5. 
Result so far: 18862.235
The remainder is 15 after subtracting 255 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 10:
The number 51 fits into 150 2 times, leaving a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 18862.2352
Subtract 102 from 150 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 11:
The number 51 fits into 480 9 times, leaving a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 18862.23529
If we subtract 459 from 480, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 12:
51 goes into 210 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 18862.235294
Deduct 204 from 210 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 13:
The number 51 fits into 60 1 times, leaving a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 18862.2352941
Deduct 51 from 60 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 14:
51 goes into 90 1 times with a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 18862.23529411
If we take 51 away from 90, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The quotient of the division is 18862.23529411, and the remainder is 3.9e-08.