20054890 ÷ 435 
The aim is to understand the frequency of 435 in 20054890.

Advancing to step 1:
The number 435 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 435

On to step 2:
When dividing 20 by 435, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Include the next digit (0) from the dividend after 20, then repeat: 200 / 435

Going ahead to step 3:
200 divided by 435 is 0 with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 200 and we're left with 200.
Include the next digit (5) from the dividend after 200, then repeat: 2005 / 435

Going ahead to step 4:
The number 435 fits into 2005 4 times, leaving a remainder of 265.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 1740 from 2005 and we're left with 265.
Grab the next digit (4) from the dividend, add it to 265, then carry on: 2654 / 435

Moving on to step 5:
When dividing 2654 by 435, we get 6 with a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 46.0
Deduct 2610 from 2654 and we're left with 44.
Include the next digit (8) from the dividend after 44, then repeat: 448 / 435

Let's proceed to step 6:
448 divided by 435 is 1 with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 461.0
Subtract 435 from 448 to get 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 435

Advancing to step 7:
If we divide 139 by 435, we get 0 and a remainder of 139.
Use 0 as the next digit of our solution. 
Result so far: 4610.0
Subtract 0 from 139 to get 139.
Grab the next digit (0) from the dividend, add it to 139, then carry on: 1390 / 435

Moving on to step 8:
435 goes into 1390 3 times with a remainder of 85.
Put 3 as the next digit of the answer. 
Result so far: 46103.0
If we take 1305 away from 1390, we end up with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Going ahead to step 9:
850 divided by 435 is 1 with a remainder of 415.
The number 1 becomes the next digit in our result. 
Result so far: 46103.1
If we subtract 435 from 850, we get 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Advancing to step 10:
The number 435 fits into 4150 9 times, leaving a remainder of 235.
Write down 9 as next digit of the result. 
Result so far: 46103.19
Subtract 3915 from 4150 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Step 11:
If we divide 2350 by 435, we get 5 and a remainder of 175.
The number 5 becomes the next digit in our result. 
Result so far: 46103.195
Subtracting 2175 from 2350 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Let's proceed to step 12:
When dividing 1750 by 435, we get 4 with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 46103.1954
If we take 1740 away from 1750, we end up 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.

Let's proceed to step 13:
The number 435 fits into 100 0 times, leaving a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 46103.1954
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 14:
The number 435 fits into 1000 2 times, leaving a remainder of 130.
Use 2 as the next digit of our solution. 
Result so far: 46103.195402
The remainder is 130 after subtracting 870 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 15:
The number 435 fits into 1300 2 times, leaving a remainder of 430.
Use 2 as the next digit of our solution. 
Result so far: 46103.1954022
Deduct 870 from 1300 and we're left with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

After the division, we end up with 46103.1954022 and a remainder of 4.3e-06.