We're dividing 20420143 by 200 
Our goal is to divide 20420143 by 200.

Advancing to step 1:
2 divided by 200 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 200

Moving on to step 2:
The number 200 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Include the next digit (4) from the dividend after 20, then repeat: 204 / 200

Going ahead to step 3:
200 goes into 204 1 times with a remainder of 4.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 200 from 204 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 200

Let's proceed to step 4:
The number 200 fits into 42 0 times, leaving a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 200

On to step 5:
420 divided by 200 is 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 102.0
If we subtract 400 from 420, we get 20.
Include the next digit (1) from the dividend after 20, then repeat: 201 / 200

Going ahead to step 6:
201 divided by 200 is 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1021.0
Deduct 200 from 201 and we're left with 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 200

Going ahead to step 7:
14 divided by 200 is 0 with a remainder of 14.
The next digit of our result is 0. 
Result so far: 10210.0
Deduct 0 from 14 and we're left with 14.
Include the next digit (3) from the dividend after 14, then repeat: 143 / 200

On to step 8:
If we divide 143 by 200, we get 0 and a remainder of 143.
The next digit of our result is 0. 
Result so far: 102100.0
Subtract 0 from 143 to get 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Let's proceed to step 9:
200 goes into 1430 7 times with a remainder of 30.
Use 7 as the next digit of our solution. 
Result so far: 102100.7
The remainder is 30 after subtracting 1400 from 1430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 10:
200 goes into 300 1 times with a remainder of 100.
The number 1 becomes the next digit in our result. 
Result so far: 102100.71
Subtracting 200 from 300 leaves us 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 11:
200 goes into 1000 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 102100.715
If we take 1000 away from 1000, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 12:
The number 200 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 102100.715
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 13:
When dividing 0 by 200, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 102100.715
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 102100.715 with a remaining 0.0.