51369909 divided by 200 
We're looking to find how many times 200 goes into 51369909.

On to step 1:
5 divided by 200 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 200

Step 2:
200 goes into 51 0 times with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Grab the next digit (3) from the dividend, add it to 51, then carry on: 513 / 200

On to step 3:
When dividing 513 by 200, we get 2 with a remainder of 113.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 400 from 513 leaves us with 113.
Include the next digit (6) from the dividend after 113, then repeat: 1136 / 200

Let's proceed to step 4:
When dividing 1136 by 200, we get 5 with a remainder of 136.
The next digit of our result is 5. 
Result so far: 25.0
If we take 1000 away from 1136, we end up with 136.
Fetch the next digit (9) from the dividend, attach it to 136 and continue: 1369 / 200

On to step 5:
When dividing 1369 by 200, we get 6 with a remainder of 169.
Put 6 as the next digit of the answer. 
Result so far: 256.0
The remainder is 169 after subtracting 1200 from 1369.
Append the next digit (9) from the dividend to 169 and continue with: 1699 / 200

Step 6:
When dividing 1699 by 200, we get 8 with a remainder of 99.
Put 8 as the next digit of the answer. 
Result so far: 2568.0
The remainder is 99 after subtracting 1600 from 1699.
Grab the next digit (0) from the dividend, add it to 99, then carry on: 990 / 200

On to step 7:
200 goes into 990 4 times with a remainder of 190.
Use 4 as the next digit of our solution. 
Result so far: 25684.0
The remainder is 190 after subtracting 800 from 990.
Take the next digit (9) from the dividend and append it to 190, then repeat: 1909 / 200

Let's proceed to step 8:
The number 200 fits into 1909 9 times, leaving a remainder of 109.
The number 9 becomes the next digit in our result. 
Result so far: 256849.0
If we take 1800 away from 1909, we end up with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Advancing to step 9:
200 goes into 1090 5 times with a remainder of 90.
The next digit of our result is 5. 
Result so far: 256849.5
Subtracting 1000 from 1090 leaves us with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Advancing to step 10:
If we divide 900 by 200, we get 4 and a remainder of 100.
The next digit of our result is 4. 
Result so far: 256849.54
The remainder is 100 after subtracting 800 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 11:
The number 200 fits into 1000 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 256849.545
Subtract 1000 from 1000 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.

On to step 12:
200 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 256849.545
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.

On to step 13:
The number 200 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 256849.545
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.

The final outcome is 256849.545, with a leftover of 0.0.