We divide 98601991 by 400
Let's see how many times 400 fits into 98601991.

Step 1:
9 divided by 400 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 400

Moving on to step 2:
The number 400 fits into 98 0 times, leaving a remainder of 98.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 98 leaves us with 98.
Take the next digit (6) from the dividend and append it to 98, then repeat: 986 / 400

Let's proceed to step 3:
When dividing 986 by 400, we get 2 with a remainder of 186.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 800 from 986, we get 186.
Include the next digit (0) from the dividend after 186, then repeat: 1860 / 400

Step 4:
400 goes into 1860 4 times with a remainder of 260.
Write down 4 as next digit of the result. 
Result so far: 24.0
If we subtract 1600 from 1860, we get 260.
Fetch the next digit (1) from the dividend, attach it to 260 and continue: 2601 / 400

Moving on to step 5:
When dividing 2601 by 400, we get 6 with a remainder of 201.
Write down 6 as next digit of the result. 
Result so far: 246.0
If we take 2400 away from 2601, we end up with 201.
Append the next digit (9) from the dividend to 201 and continue with: 2019 / 400

Step 6:
If we divide 2019 by 400, we get 5 and a remainder of 19.
Put 5 as the next digit of the answer. 
Result so far: 2465.0
The remainder is 19 after subtracting 2000 from 2019.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 400

Moving on to step 7:
400 goes into 199 0 times with a remainder of 199.
Write down 0 as next digit of the result. 
Result so far: 24650.0
If we subtract 0 from 199, we get 199.
Fetch the next digit (1) from the dividend, attach it to 199 and continue: 1991 / 400

On to step 8:
400 goes into 1991 4 times with a remainder of 391.
Put 4 as the next digit of the answer. 
Result so far: 246504.0
If we take 1600 away from 1991, we end up with 391.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

Moving on to step 9:
If we divide 3910 by 400, we get 9 and a remainder of 310.
Use 9 as the next digit of our solution. 
Result so far: 246504.9
Deduct 3600 from 3910 and we're left with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Step 10:
3100 divided by 400 is 7 with a remainder of 300.
The number 7 becomes the next digit in our result. 
Result so far: 246504.97
The remainder is 300 after subtracting 2800 from 3100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 11:
400 can be fit into 3000 7 times, resulting in a remainder of 200.
Record the quotient 7 as the next digit in the result. 
Result so far: 246504.977
The remainder is 200 after subtracting 2800 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

After the division, we end up with 246504.977 and a remainder of 0.02.