99636378 ÷ 221 
We're looking to find how many times 221 goes into 99636378.

Going ahead to step 1:
The number 221 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 221

Step 2:
221 can be fit into 99 0 times, resulting in a remainder of 99.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Take the next digit (6) from the dividend and append it to 99, then repeat: 996 / 221

Let's proceed to step 3:
221 goes into 996 4 times with a remainder of 112.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 884 from 996 and we're left with 112.
Include the next digit (3) from the dividend after 112, then repeat: 1123 / 221

Moving on to step 4:
If we divide 1123 by 221, we get 5 and a remainder of 18.
Write down 5 as next digit of the result. 
Result so far: 45.0
Deduct 1105 from 1123 and we're left with 18.
Grab the next digit (6) from the dividend, add it to 18, then carry on: 186 / 221

Advancing to step 5:
186 divided by 221 is 0 with a remainder of 186.
Write down 0 as next digit of the result. 
Result so far: 450.0
If we subtract 0 from 186, we get 186.
Include the next digit (3) from the dividend after 186, then repeat: 1863 / 221

Advancing to step 6:
The number 221 fits into 1863 8 times, leaving a remainder of 95.
Put 8 as the next digit of the answer. 
Result so far: 4508.0
If we take 1768 away from 1863, we end up with 95.
Include the next digit (7) from the dividend after 95, then repeat: 957 / 221

Moving on to step 7:
221 can be fit into 957 4 times, resulting in a remainder of 73.
Put 4 as the next digit of the answer. 
Result so far: 45084.0
Subtract 884 from 957 to get 73.
Append the next digit (8) from the dividend to 73 and continue with: 738 / 221

Let's proceed to step 8:
If we divide 738 by 221, we get 3 and a remainder of 75.
Write down 3 as next digit of the result. 
Result so far: 450843.0
The remainder is 75 after subtracting 663 from 738.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 9:
221 goes into 750 3 times with a remainder of 87.
Use 3 as the next digit of our solution. 
Result so far: 450843.3
Subtract 663 from 750 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 10:
221 can be fit into 870 3 times, resulting in a remainder of 207.
Record the quotient 3 as the next digit in the result. 
Result so far: 450843.33
Deduct 663 from 870 and we're left with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

After the division, we end up with 450843.33 and a remainder of 0.207.