We look at the division of 99105055 by 604 
We want to figure out the number of times 99105055 can be divided by 604.

Moving on to step 1:
The number 604 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 604

On to step 2:
604 can be fit into 99 0 times, resulting in a remainder of 99.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 99, we end up with 99.
Include the next digit (1) from the dividend after 99, then repeat: 991 / 604

Moving on to step 3:
If we divide 991 by 604, we get 1 and a remainder of 387.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 604 from 991 to get 387.
Include the next digit (0) from the dividend after 387, then repeat: 3870 / 604

On to step 4:
The number 604 fits into 3870 6 times, leaving a remainder of 246.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtracting 3624 from 3870 leaves us with 246.
Include the next digit (5) from the dividend after 246, then repeat: 2465 / 604

Step 5:
604 can be fit into 2465 4 times, resulting in a remainder of 49.
Use 4 as the next digit of our solution. 
Result so far: 164.0
If we take 2416 away from 2465, we end up with 49.
Include the next digit (0) from the dividend after 49, then repeat: 490 / 604

Let's proceed to step 6:
604 goes into 490 0 times with a remainder of 490.
The number 0 becomes the next digit in our result. 
Result so far: 1640.0
The remainder is 490 after subtracting 0 from 490.
Grab the next digit (5) from the dividend, add it to 490, then carry on: 4905 / 604

On to step 7:
The number 604 fits into 4905 8 times, leaving a remainder of 73.
Put 8 as the next digit of the answer. 
Result so far: 16408.0
If we subtract 4832 from 4905, we get 73.
Fetch the next digit (5) from the dividend, attach it to 73 and continue: 735 / 604

Step 8:
604 goes into 735 1 times with a remainder of 131.
Put 1 as the next digit of the answer. 
Result so far: 164081.0
Deduct 604 from 735 and we're left with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Step 9:
The number 604 fits into 1310 2 times, leaving a remainder of 102.
Put 2 as the next digit of the answer. 
Result so far: 164081.2
Subtract 1208 from 1310 to get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Step 10:
1020 divided by 604 is 1 with a remainder of 416.
Record the quotient 1 as the next digit in the result. 
Result so far: 164081.21
If we subtract 604 from 1020, we get 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

On to step 11:
If we divide 4160 by 604, we get 6 and a remainder of 536.
Write down 6 as next digit of the result. 
Result so far: 164081.216
If we take 3624 away from 4160, we end up with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Moving on to step 12:
604 goes into 5360 8 times with a remainder of 528.
Write down 8 as next digit of the result. 
Result so far: 164081.2168
The remainder is 528 after subtracting 4832 from 5360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Going ahead to step 13:
604 can be fit into 5280 8 times, resulting in a remainder of 448.
Write down 8 as next digit of the result. 
Result so far: 164081.21688
The remainder is 448 after subtracting 4832 from 5280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Our division results in 164081.21688 with a remaining 0.000448.