Let's divide 99945774 by 400
Let's see how many times 400 fits into 99945774.

Advancing to step 1:
400 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 400

Moving on to step 2:
The number 400 fits into 99 0 times, leaving a remainder of 99.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Include the next digit (9) from the dividend after 99, then repeat: 999 / 400

Moving on to step 3:
If we divide 999 by 400, we get 2 and a remainder of 199.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 800 from 999 and we're left with 199.
Bring next digit (4) of the dividend behind the 199 and repeat the process: 1994 / 400

Moving on to step 4:
400 goes into 1994 4 times with a remainder of 394.
Use 4 as the next digit of our solution. 
Result so far: 24.0
If we take 1600 away from 1994, we end up with 394.
Include the next digit (5) from the dividend after 394, then repeat: 3945 / 400

Going ahead to step 5:
400 goes into 3945 9 times with a remainder of 345.
The next digit of our result is 9. 
Result so far: 249.0
The remainder is 345 after subtracting 3600 from 3945.
Bring next digit (7) of the dividend behind the 345 and repeat the process: 3457 / 400

Let's proceed to step 6:
If we divide 3457 by 400, we get 8 and a remainder of 257.
Write down 8 as next digit of the result. 
Result so far: 2498.0
If we take 3200 away from 3457, we end up with 257.
Include the next digit (7) from the dividend after 257, then repeat: 2577 / 400

Going ahead to step 7:
400 goes into 2577 6 times with a remainder of 177.
Record the quotient 6 as the next digit in the result. 
Result so far: 24986.0
Deduct 2400 from 2577 and we're left with 177.
Bring next digit (4) of the dividend behind the 177 and repeat the process: 1774 / 400

On to step 8:
When dividing 1774 by 400, we get 4 with a remainder of 174.
Write down 4 as next digit of the result. 
Result so far: 249864.0
If we take 1600 away from 1774, we end up with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

On to step 9:
If we divide 1740 by 400, we get 4 and a remainder of 140.
Record the quotient 4 as the next digit in the result. 
Result so far: 249864.4
If we take 1600 away from 1740, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Advancing to step 10:
1400 divided by 400 is 3 with a remainder of 200.
The next digit of our result is 3. 
Result so far: 249864.43
Deduct 1200 from 1400 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 11:
If we divide 2000 by 400, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 249864.435
Subtracting 2000 from 2000 leaves us 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.

Step 12:
The number 400 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 249864.435
Subtracting 0 from 0 leaves us 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:
400 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 249864.435
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.

After the division, we end up with 249864.435 and a remainder of 0.0.