20453511 ÷ 434 
The aim is to understand the frequency of 434 in 20453511.

On to step 1:
The number 434 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 434

Moving on to step 2:
434 goes into 20 0 times with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Fetch the next digit (4) from the dividend, attach it to 20 and continue: 204 / 434

Step 3:
If we divide 204 by 434, we get 0 and a remainder of 204.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 204, we end up with 204.
Fetch the next digit (5) from the dividend, attach it to 204 and continue: 2045 / 434

Advancing to step 4:
When dividing 2045 by 434, we get 4 with a remainder of 309.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 1736 from 2045 leaves us with 309.
Append the next digit (3) from the dividend to 309 and continue with: 3093 / 434

Step 5:
434 goes into 3093 7 times with a remainder of 55.
Use 7 as the next digit of our solution. 
Result so far: 47.0
The remainder is 55 after subtracting 3038 from 3093.
Include the next digit (5) from the dividend after 55, then repeat: 555 / 434

Step 6:
When dividing 555 by 434, we get 1 with a remainder of 121.
Use 1 as the next digit of our solution. 
Result so far: 471.0
If we take 434 away from 555, we end up with 121.
Fetch the next digit (1) from the dividend, attach it to 121 and continue: 1211 / 434

Going ahead to step 7:
1211 divided by 434 is 2 with a remainder of 343.
Put 2 as the next digit of the answer. 
Result so far: 4712.0
Deduct 868 from 1211 and we're left with 343.
Bring next digit (1) of the dividend behind the 343 and repeat the process: 3431 / 434

Step 8:
434 can be fit into 3431 7 times, resulting in a remainder of 393.
Put 7 as the next digit of the answer. 
Result so far: 47127.0
If we take 3038 away from 3431, we end up with 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

Going ahead to step 9:
3930 divided by 434 is 9 with a remainder of 24.
The number 9 becomes the next digit in our result. 
Result so far: 47127.9
Subtract 3906 from 3930 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
240 divided by 434 is 0 with a remainder of 240.
Put 0 as the next digit of the answer. 
Result so far: 47127.9
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 11:
The number 434 fits into 2400 5 times, leaving a remainder of 230.
Write down 5 as next digit of the result. 
Result so far: 47127.905
The remainder is 230 after subtracting 2170 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 12:
434 goes into 2300 5 times with a remainder of 130.
Write down 5 as next digit of the result. 
Result so far: 47127.9055
Subtract 2170 from 2300 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

After the division, we end up with 47127.9055 and a remainder of 0.0013.