391946 divided by 35 
The aim is to understand the frequency of 35 in 391946.

Step 1:
3 divided by 35 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 35

Advancing to step 2:
35 can be fit into 39 1 times, resulting in a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 35 from 39 leaves us with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 35

Advancing to step 3:
If we divide 41 by 35, we get 1 and a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtracting 35 from 41 leaves us with 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 35

Moving on to step 4:
When dividing 69 by 35, we get 1 with a remainder of 34.
The number 1 becomes the next digit in our result. 
Result so far: 111.0
The remainder is 34 after subtracting 35 from 69.
Grab the next digit (4) from the dividend, add it to 34, then carry on: 344 / 35

On to step 5:
If we divide 344 by 35, we get 9 and a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 1119.0
If we take 315 away from 344, we end up with 29.
Take the next digit (6) from the dividend and append it to 29, then repeat: 296 / 35

On to step 6:
When dividing 296 by 35, we get 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 11198.0
If we take 280 away from 296, we end up 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.

Advancing to step 7:
If we divide 160 by 35, we get 4 and a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 11198.4
The remainder is 20 after subtracting 140 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 8:
When dividing 200 by 35, we get 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 11198.45
Subtracting 175 from 200 leaves us 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.

Going ahead to step 9:
35 goes into 250 7 times with a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 11198.457
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.

Moving on to step 10:
35 goes into 50 1 times with a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 11198.4571
If we take 35 away from 50, we end up 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.

Going ahead to step 11:
When dividing 150 by 35, we get 4 with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 11198.45714
Subtracting 140 from 150 leaves us with 10.
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 12:
100 divided by 35 is 2 with a remainder of 30.
Record the quotient 2 as the next digit in the result. 
Result so far: 11198.457142
If we subtract 70 from 100, 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.

Step 13:
The number 35 fits into 300 8 times, leaving a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 11198.4571428
Subtract 280 from 300 to 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.

Let's proceed to step 14:
35 goes into 200 5 times with a remainder of 25.
The next digit of our result is 5. 
Result so far: 11198.45714285
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.

Our division results in 11198.45714285 with a remaining 2.5e-08.