993115 divided by 51 
The aim is to understand the frequency of 51 in 993115.

On to step 1:
51 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 51

On to step 2:
If we divide 99 by 51, we get 1 and a remainder of 48.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 51 from 99 and we're left with 48.
Grab the next digit (3) from the dividend, add it to 48, then carry on: 483 / 51

Moving on to step 3:
The number 51 fits into 483 9 times, leaving a remainder of 24.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Deduct 459 from 483 and we're left with 24.
Bring next digit (1) of the dividend behind the 24 and repeat the process: 241 / 51

On to step 4:
The number 51 fits into 241 4 times, leaving a remainder of 37.
The next digit of our result is 4. 
Result so far: 194.0
Deduct 204 from 241 and we're left with 37.
Grab the next digit (1) from the dividend, add it to 37, then carry on: 371 / 51

Going ahead to step 5:
51 goes into 371 7 times with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 1947.0
If we take 357 away from 371, we end up with 14.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 51

Let's proceed to step 6:
When dividing 145 by 51, we get 2 with a remainder of 43.
The number 2 becomes the next digit in our result. 
Result so far: 19472.0
The remainder is 43 after subtracting 102 from 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 7:
430 divided by 51 is 8 with a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 19472.8
The remainder is 22 after subtracting 408 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 8:
The number 51 fits into 220 4 times, leaving a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 19472.84
Deduct 204 from 220 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 9:
51 can be fit into 160 3 times, resulting in a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 19472.843
The remainder is 7 after subtracting 153 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 10:
If we divide 70 by 51, we get 1 and a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 19472.8431
Subtracting 51 from 70 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 11:
51 can be fit into 190 3 times, resulting in a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 19472.84313
If we take 153 away from 190, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 12:
If we divide 370 by 51, we get 7 and a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 19472.843137
Subtracting 357 from 370 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 13:
51 goes into 130 2 times with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 19472.8431372
Deduct 102 from 130 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
51 goes into 280 5 times with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 19472.84313725
If we take 255 away from 280, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Our division results in 19472.84313725 with a remaining 2.5e-08.