525438 divided by 35 
The aim is to understand the frequency of 35 in 525438.

Going ahead to step 1:
If we divide 5 by 35, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 35

Going ahead to step 2:
35 can be fit into 52 1 times, resulting in a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 35 from 52 to get 17.
Append the next digit (5) from the dividend to 17 and continue with: 175 / 35

Let's proceed to step 3:
175 divided by 35 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 175 from 175, we get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 35

Step 4:
35 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 150.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 35

Going ahead to step 5:
35 can be fit into 43 1 times, resulting in a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1501.0
If we subtract 35 from 43, we get 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 35

On to step 6:
35 goes into 88 2 times with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 15012.0
Subtracting 70 from 88 leaves us with 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 7:
The number 35 fits into 180 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 15012.5
If we subtract 175 from 180, we 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.

Going ahead to step 8:
50 divided by 35 is 1 with a remainder of 15.
The next digit of our result is 1. 
Result so far: 15012.51
The remainder is 15 after subtracting 35 from 50.
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 9:
35 goes into 150 4 times with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 15012.514
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.

Going ahead to step 10:
35 can be fit into 100 2 times, resulting in a remainder of 30.
Record the quotient 2 as the next digit in the result. 
Result so far: 15012.5142
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.

Moving on to step 11:
The number 35 fits into 300 8 times, leaving a remainder of 20.
The next digit of our result is 8. 
Result so far: 15012.51428
If we subtract 280 from 300, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 12:
When dividing 200 by 35, we get 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 15012.514285
The remainder is 25 after subtracting 175 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 13:
The number 35 fits into 250 7 times, leaving a remainder of 5.
The next digit of our result is 7. 
Result so far: 15012.5142857
The remainder is 5 after subtracting 245 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 14:
The number 35 fits into 50 1 times, leaving a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 15012.51428571
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.

After the division, we end up with 15012.51428571 and a remainder of 1.5e-08.