We look at the division of 72816421 by 200 
We want to divide 72816421 by 200.

Step 1:
If we divide 7 by 200, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 200

Step 2:
200 goes into 72 0 times with a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Take the next digit (8) from the dividend and append it to 72, then repeat: 728 / 200

On to step 3:
728 divided by 200 is 3 with a remainder of 128.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 600 from 728 and we're left with 128.
Include the next digit (1) from the dividend after 128, then repeat: 1281 / 200

On to step 4:
200 goes into 1281 6 times with a remainder of 81.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
The remainder is 81 after subtracting 1200 from 1281.
Include the next digit (6) from the dividend after 81, then repeat: 816 / 200

Advancing to step 5:
200 goes into 816 4 times with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 364.0
The remainder is 16 after subtracting 800 from 816.
Include the next digit (4) from the dividend after 16, then repeat: 164 / 200

Step 6:
If we divide 164 by 200, we get 0 and a remainder of 164.
Put 0 as the next digit of the answer. 
Result so far: 3640.0
If we take 0 away from 164, we end up with 164.
Grab the next digit (2) from the dividend, add it to 164, then carry on: 1642 / 200

Let's proceed to step 7:
200 can be fit into 1642 8 times, resulting in a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 36408.0
If we subtract 1600 from 1642, we get 42.
Take the next digit (1) from the dividend and append it to 42, then repeat: 421 / 200

Advancing to step 8:
200 can be fit into 421 2 times, resulting in a remainder of 21.
Put 2 as the next digit of the answer. 
Result so far: 364082.0
Deduct 400 from 421 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 9:
200 goes into 210 1 times with a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 364082.1
Deduct 200 from 210 and we're left 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.

Step 10:
200 can be fit into 100 0 times, resulting in a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 364082.1
Subtracting 0 from 100 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:
The number 200 fits into 1000 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 364082.105
If we subtract 1000 from 1000, we 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.

Step 12:
0 divided by 200 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 364082.105
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.

Going ahead to step 13:
When dividing 0 by 200, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 364082.105
If we take 0 away from 0, 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.

Our division results in 364082.105 with a remaining 0.0.