443151 divided by 51 
The aim is to understand the frequency of 51 in 443151.

Moving on to step 1:
4 divided by 51 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 51

Step 2:
44 divided by 51 is 0 with a remainder of 44.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 44 and we're left with 44.
Take the next digit (3) from the dividend and append it to 44, then repeat: 443 / 51

On to step 3:
The number 51 fits into 443 8 times, leaving a remainder of 35.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 408 from 443 and we're left with 35.
Bring next digit (1) of the dividend behind the 35 and repeat the process: 351 / 51

Let's proceed to step 4:
351 divided by 51 is 6 with a remainder of 45.
Write down 6 as next digit of the result. 
Result so far: 86.0
Subtracting 306 from 351 leaves us with 45.
Fetch the next digit (5) from the dividend, attach it to 45 and continue: 455 / 51

Let's proceed to step 5:
51 goes into 455 8 times with a remainder of 47.
Record the quotient 8 as the next digit in the result. 
Result so far: 868.0
If we subtract 408 from 455, we get 47.
Bring next digit (1) of the dividend behind the 47 and repeat the process: 471 / 51

Let's proceed to step 6:
51 can be fit into 471 9 times, resulting in a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 8689.0
Subtract 459 from 471 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.

Advancing to step 7:
51 goes into 120 2 times with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 8689.2
Subtract 102 from 120 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 8:
180 divided by 51 is 3 with a remainder of 27.
The next digit of our result is 3. 
Result so far: 8689.23
If we take 153 away from 180, we end up 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.

Advancing to step 9:
270 divided by 51 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 8689.235
Subtract 255 from 270 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 10:
51 goes into 150 2 times with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 8689.2352
Subtracting 102 from 150 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 11:
When dividing 480 by 51, we get 9 with a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 8689.23529
The remainder is 21 after subtracting 459 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 12:
210 divided by 51 is 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 8689.235294
If we subtract 204 from 210, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 13:
51 can be fit into 60 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 8689.2352941
The remainder is 9 after subtracting 51 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 14:
If we divide 90 by 51, we get 1 and a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 8689.23529411
If we subtract 51 from 90, we get 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 final result is 8689.23529411 with a remainder of 3.9e-08.