We look at the division of 644054 by 99 
We want to divide 644054 by 99.

Advancing to step 1:
The number 99 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 99

Step 2:
99 can be fit into 64 0 times, resulting in a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Grab the next digit (4) from the dividend, add it to 64, then carry on: 644 / 99

Let's proceed to step 3:
The number 99 fits into 644 6 times, leaving a remainder of 50.
Use 6 as the next digit of our solution. 
Result so far: 6.0
The remainder is 50 after subtracting 594 from 644.
Bring next digit (0) of the dividend behind the 50 and repeat the process: 500 / 99

On to step 4:
The number 99 fits into 500 5 times, leaving a remainder of 5.
The next digit of our result is 5. 
Result so far: 65.0
Subtracting 495 from 500 leaves us with 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 99

Moving on to step 5:
99 can be fit into 55 0 times, resulting in a remainder of 55.
The number 0 becomes the next digit in our result. 
Result so far: 650.0
Subtract 0 from 55 to get 55.
Append the next digit (4) from the dividend to 55 and continue with: 554 / 99

Let's proceed to step 6:
99 goes into 554 5 times with a remainder of 59.
The number 5 becomes the next digit in our result. 
Result so far: 6505.0
Deduct 495 from 554 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 7:
The number 99 fits into 590 5 times, leaving a remainder of 95.
Use 5 as the next digit of our solution. 
Result so far: 6505.5
Subtract 495 from 590 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Moving on to step 8:
99 can be fit into 950 9 times, resulting in a remainder of 59.
Put 9 as the next digit of the answer. 
Result so far: 6505.59
If we subtract 891 from 950, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 9:
When dividing 590 by 99, we get 5 with a remainder of 95.
The number 5 becomes the next digit in our result. 
Result so far: 6505.595
If we subtract 495 from 590, we get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

On to step 10:
When dividing 950 by 99, we get 9 with a remainder of 59.
Use 9 as the next digit of our solution. 
Result so far: 6505.5959
Subtracting 891 from 950 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 11:
If we divide 590 by 99, we get 5 and a remainder of 95.
Put 5 as the next digit of the answer. 
Result so far: 6505.59595
If we take 495 away from 590, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Advancing to step 12:
950 divided by 99 is 9 with a remainder of 59.
The next digit of our result is 9. 
Result so far: 6505.595959
The remainder is 59 after subtracting 891 from 950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 13:
99 goes into 590 5 times with a remainder of 95.
Record the quotient 5 as the next digit in the result. 
Result so far: 6505.5959595
Subtract 495 from 590 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Moving on to step 14:
When dividing 950 by 99, we get 9 with a remainder of 59.
Use 9 as the next digit of our solution. 
Result so far: 6505.59595959
Subtracting 891 from 950 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

The final result is 6505.59595959 with a remainder of 5.9e-08.