We're dividing 63489886 by 573 
We want to figure out the number of times 63489886 can be divided by 573.

Moving on to step 1:
When dividing 6 by 573, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 573

Advancing to step 2:
When dividing 63 by 573, we get 0 with a remainder of 63.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Grab the next digit (4) from the dividend, add it to 63, then carry on: 634 / 573

Let's proceed to step 3:
If we divide 634 by 573, we get 1 and a remainder of 61.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 573 from 634 leaves us with 61.
Include the next digit (8) from the dividend after 61, then repeat: 618 / 573

Going ahead to step 4:
When dividing 618 by 573, we get 1 with a remainder of 45.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtract 573 from 618 to get 45.
Include the next digit (9) from the dividend after 45, then repeat: 459 / 573

Advancing to step 5:
573 goes into 459 0 times with a remainder of 459.
Use 0 as the next digit of our solution. 
Result so far: 110.0
Deduct 0 from 459 and we're left with 459.
Bring next digit (8) of the dividend behind the 459 and repeat the process: 4598 / 573

Step 6:
If we divide 4598 by 573, we get 8 and a remainder of 14.
The next digit of our result is 8. 
Result so far: 1108.0
If we subtract 4584 from 4598, we get 14.
Append the next digit (8) from the dividend to 14 and continue with: 148 / 573

On to step 7:
If we divide 148 by 573, we get 0 and a remainder of 148.
Put 0 as the next digit of the answer. 
Result so far: 11080.0
Subtracting 0 from 148 leaves us with 148.
Include the next digit (6) from the dividend after 148, then repeat: 1486 / 573

Let's proceed to step 8:
The number 573 fits into 1486 2 times, leaving a remainder of 340.
Put 2 as the next digit of the answer. 
Result so far: 110802.0
If we subtract 1146 from 1486, we get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 9:
3400 divided by 573 is 5 with a remainder of 535.
Use 5 as the next digit of our solution. 
Result so far: 110802.5
If we take 2865 away from 3400, we end up with 535.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Let's proceed to step 10:
If we divide 5350 by 573, we get 9 and a remainder of 193.
Put 9 as the next digit of the answer. 
Result so far: 110802.59
If we subtract 5157 from 5350, we get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Step 11:
If we divide 1930 by 573, we get 3 and a remainder of 211.
Use 3 as the next digit of our solution. 
Result so far: 110802.593
If we take 1719 away from 1930, we end up with 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Step 12:
If we divide 2110 by 573, we get 3 and a remainder of 391.
Record the quotient 3 as the next digit in the result. 
Result so far: 110802.5933
Deduct 1719 from 2110 and we're left 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.

After the division, we end up with 110802.5933 and a remainder of 0.00391.