51135687 ÷ 34 
The aim is to understand the frequency of 34 in 51135687.

Step 1:
34 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 34

Advancing to step 2:
If we divide 51 by 34, we get 1 and a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 34 from 51 to get 17.
Take the next digit (1) from the dividend and append it to 17, then repeat: 171 / 34

Step 3:
If we divide 171 by 34, we get 5 and a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Deduct 170 from 171 and we're left with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 34

Moving on to step 4:
13 divided by 34 is 0 with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 150.0
The remainder is 13 after subtracting 0 from 13.
Include the next digit (5) from the dividend after 13, then repeat: 135 / 34

Moving on to step 5:
The number 34 fits into 135 3 times, leaving a remainder of 33.
The next digit of our result is 3. 
Result so far: 1503.0
Deduct 102 from 135 and we're left with 33.
Include the next digit (6) from the dividend after 33, then repeat: 336 / 34

On to step 6:
336 divided by 34 is 9 with a remainder of 30.
Put 9 as the next digit of the answer. 
Result so far: 15039.0
Deduct 306 from 336 and we're left with 30.
Grab the next digit (8) from the dividend, add it to 30, then carry on: 308 / 34

Step 7:
The number 34 fits into 308 9 times, leaving a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 150399.0
The remainder is 2 after subtracting 306 from 308.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 34

On to step 8:
34 goes into 27 0 times with a remainder of 27.
Record the quotient 0 as the next digit in the result. 
Result so far: 1503990.0
Subtract 0 from 27 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 9:
When dividing 270 by 34, we get 7 with a remainder of 32.
Put 7 as the next digit of the answer. 
Result so far: 1503990.7
The remainder is 32 after subtracting 238 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 10:
If we divide 320 by 34, we get 9 and a remainder of 14.
The next digit of our result is 9. 
Result so far: 1503990.79
If we subtract 306 from 320, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
140 divided by 34 is 4 with a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 1503990.794
If we take 136 away from 140, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 12:
The number 34 fits into 40 1 times, leaving a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 1503990.7941
Subtracting 34 from 40 leaves us 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.

Step 13:
The number 34 fits into 60 1 times, leaving a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 1503990.79411
The remainder is 26 after subtracting 34 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

In conclusion, the division gives 1503990.79411 with a balance of 2.6e-05.