We divide 871695 by 51
The aim is to understand the frequency of 51 in 871695.

Step 1:
8 divided by 51 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 51

Advancing to step 2:
51 can be fit into 87 1 times, resulting in a remainder of 36.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 51 from 87 to get 36.
Take the next digit (1) from the dividend and append it to 36, then repeat: 361 / 51

Step 3:
51 goes into 361 7 times with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we subtract 357 from 361, we get 4.
Fetch the next digit (6) from the dividend, attach it to 4 and continue: 46 / 51

Moving on to step 4:
The number 51 fits into 46 0 times, leaving a remainder of 46.
Put 0 as the next digit of the answer. 
Result so far: 170.0
The remainder is 46 after subtracting 0 from 46.
Grab the next digit (9) from the dividend, add it to 46, then carry on: 469 / 51

Advancing to step 5:
When dividing 469 by 51, we get 9 with a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 1709.0
Subtract 459 from 469 to get 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 51

Moving on to step 6:
If we divide 105 by 51, we get 2 and a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 17092.0
Deduct 102 from 105 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
51 goes into 30 0 times with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 17092.0
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
The number 51 fits into 300 5 times, leaving a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 17092.05
If we take 255 away from 300, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 9:
51 can be fit into 450 8 times, resulting in a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 17092.058
The remainder is 42 after subtracting 408 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 10:
51 goes into 420 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 17092.0588
If we subtract 408 from 420, we 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.

The quotient of the division is 17092.0588, and the remainder is 0.00012.