84439645 divided by 200 
Our goal is to divide 84439645 by 200.

Step 1:
The number 200 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 200

On to step 2:
200 goes into 84 0 times with a remainder of 84.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 84, we end up with 84.
Append the next digit (4) from the dividend to 84 and continue with: 844 / 200

Let's proceed to step 3:
The number 200 fits into 844 4 times, leaving a remainder of 44.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 44 after subtracting 800 from 844.
Bring next digit (3) of the dividend behind the 44 and repeat the process: 443 / 200

On to step 4:
200 can be fit into 443 2 times, resulting in a remainder of 43.
Write down 2 as next digit of the result. 
Result so far: 42.0
Subtract 400 from 443 to get 43.
Bring next digit (9) of the dividend behind the 43 and repeat the process: 439 / 200

Moving on to step 5:
200 can be fit into 439 2 times, resulting in a remainder of 39.
Write down 2 as next digit of the result. 
Result so far: 422.0
Deduct 400 from 439 and we're left with 39.
Grab the next digit (6) from the dividend, add it to 39, then carry on: 396 / 200

Advancing to step 6:
200 goes into 396 1 times with a remainder of 196.
Put 1 as the next digit of the answer. 
Result so far: 4221.0
The remainder is 196 after subtracting 200 from 396.
Include the next digit (4) from the dividend after 196, then repeat: 1964 / 200

Going ahead to step 7:
If we divide 1964 by 200, we get 9 and a remainder of 164.
Use 9 as the next digit of our solution. 
Result so far: 42219.0
Subtracting 1800 from 1964 leaves us with 164.
Include the next digit (5) from the dividend after 164, then repeat: 1645 / 200

Going ahead to step 8:
The number 200 fits into 1645 8 times, leaving a remainder of 45.
Use 8 as the next digit of our solution. 
Result so far: 422198.0
Subtracting 1600 from 1645 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 9:
When dividing 450 by 200, we get 2 with a remainder of 50.
The number 2 becomes the next digit in our result. 
Result so far: 422198.2
Subtract 400 from 450 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 10:
200 goes into 500 2 times with a remainder of 100.
Use 2 as the next digit of our solution. 
Result so far: 422198.22
Subtract 400 from 500 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final result is 422198.22 with a remainder of 0.1.