Let's divide 35343890 by 431
The aim is to understand the frequency of 431 in 35343890.

Advancing to step 1:
If we divide 3 by 431, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 431

Advancing to step 2:
431 goes into 35 0 times with a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 35 to get 35.
Grab the next digit (3) from the dividend, add it to 35, then carry on: 353 / 431

On to step 3:
431 can be fit into 353 0 times, resulting in a remainder of 353.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 353 and we're left with 353.
Fetch the next digit (4) from the dividend, attach it to 353 and continue: 3534 / 431

Step 4:
431 can be fit into 3534 8 times, resulting in a remainder of 86.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 3448 from 3534 and we're left with 86.
Fetch the next digit (3) from the dividend, attach it to 86 and continue: 863 / 431

Moving on to step 5:
431 can be fit into 863 2 times, resulting in a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 82.0
The remainder is 1 after subtracting 862 from 863.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 431

Moving on to step 6:
431 goes into 18 0 times with a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 820.0
Deduct 0 from 18 and we're left with 18.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 431

Moving on to step 7:
The number 431 fits into 189 0 times, leaving a remainder of 189.
Put 0 as the next digit of the answer. 
Result so far: 8200.0
Deduct 0 from 189 and we're left with 189.
Bring next digit (0) of the dividend behind the 189 and repeat the process: 1890 / 431

Let's proceed to step 8:
The number 431 fits into 1890 4 times, leaving a remainder of 166.
Use 4 as the next digit of our solution. 
Result so far: 82004.0
If we take 1724 away from 1890, we end up with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Let's proceed to step 9:
When dividing 1660 by 431, we get 3 with a remainder of 367.
The number 3 becomes the next digit in our result. 
Result so far: 82004.3
If we subtract 1293 from 1660, we get 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Let's proceed to step 10:
When dividing 3670 by 431, we get 8 with a remainder of 222.
The number 8 becomes the next digit in our result. 
Result so far: 82004.38
Subtract 3448 from 3670 to get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Step 11:
If we divide 2220 by 431, we get 5 and a remainder of 65.
The next digit of our result is 5. 
Result so far: 82004.385
Deduct 2155 from 2220 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 12:
431 can be fit into 650 1 times, resulting in a remainder of 219.
Put 1 as the next digit of the answer. 
Result so far: 82004.3851
Subtracting 431 from 650 leaves us with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Advancing to step 13:
If we divide 2190 by 431, we get 5 and a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 82004.38515
Subtract 2155 from 2190 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 14:
If we divide 350 by 431, we get 0 and a remainder of 350.
Use 0 as the next digit of our solution. 
Result so far: 82004.38515
Deduct 0 from 350 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Going ahead to step 15:
431 goes into 3500 8 times with a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 82004.3851508
Subtract 3448 from 3500 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 16:
431 can be fit into 520 1 times, resulting in a remainder of 89.
Put 1 as the next digit of the answer. 
Result so far: 82004.38515081
Subtract 431 from 520 to get 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

After the division, we end up with 82004.38515081 and a remainder of 8.9e-08.