We look at the division of 151315 by 35 
The aim is to understand the frequency of 35 in 151315.

Let's proceed to step 1:
If we divide 1 by 35, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 35

Going ahead to step 2:
When dividing 15 by 35, we get 0 with a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Include the next digit (1) from the dividend after 15, then repeat: 151 / 35

Let's proceed to step 3:
151 divided by 35 is 4 with a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 140 away from 151, we end up with 11.
Include the next digit (3) from the dividend after 11, then repeat: 113 / 35

Advancing to step 4:
35 goes into 113 3 times with a remainder of 8.
The next digit of our result is 3. 
Result so far: 43.0
Subtracting 105 from 113 leaves us with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 35

Step 5:
If we divide 81 by 35, we get 2 and a remainder of 11.
The next digit of our result is 2. 
Result so far: 432.0
Deduct 70 from 81 and we're left with 11.
Take the next digit (5) from the dividend and append it to 11, then repeat: 115 / 35

Moving on to step 6:
The number 35 fits into 115 3 times, leaving a remainder of 10.
The next digit of our result is 3. 
Result so far: 4323.0
The remainder is 10 after subtracting 105 from 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
35 can be fit into 100 2 times, resulting in a remainder of 30.
The number 2 becomes the next digit in our result. 
Result so far: 4323.2
The remainder is 30 after subtracting 70 from 100.
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:
When dividing 300 by 35, we get 8 with a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 4323.28
The remainder is 20 after subtracting 280 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
35 can be fit into 200 5 times, resulting in a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 4323.285
Deduct 175 from 200 and we're left 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.

Moving on to step 10:
If we divide 250 by 35, we get 7 and a remainder of 5.
The next digit of our result is 7. 
Result so far: 4323.2857
Subtract 245 from 250 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 11:
35 can be fit into 50 1 times, resulting in a remainder of 15.
The next digit of our result is 1. 
Result so far: 4323.28571
Deduct 35 from 50 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 12:
When dividing 150 by 35, we get 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 4323.285714
The remainder is 10 after subtracting 140 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 13:
If we divide 100 by 35, we get 2 and a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 4323.2857142
The remainder is 30 after subtracting 70 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 14:
35 goes into 300 8 times with a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 4323.28571428
The remainder is 20 after subtracting 280 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 4323.28571428 with a remaining 2e-08.