We look at the division of 638125 by 99 
We want to figure out the number of times 638125 can be divided by 99.

Going ahead to step 1:
99 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 99

Moving on to step 2:
63 divided by 99 is 0 with a remainder of 63.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 63, we end up with 63.
Grab the next digit (8) from the dividend, add it to 63, then carry on: 638 / 99

On to step 3:
If we divide 638 by 99, we get 6 and a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 594 from 638 and we're left with 44.
Fetch the next digit (1) from the dividend, attach it to 44 and continue: 441 / 99

Let's proceed to step 4:
When dividing 441 by 99, we get 4 with a remainder of 45.
Put 4 as the next digit of the answer. 
Result so far: 64.0
The remainder is 45 after subtracting 396 from 441.
Bring next digit (2) of the dividend behind the 45 and repeat the process: 452 / 99

Advancing to step 5:
99 goes into 452 4 times with a remainder of 56.
The next digit of our result is 4. 
Result so far: 644.0
Subtract 396 from 452 to get 56.
Bring next digit (5) of the dividend behind the 56 and repeat the process: 565 / 99

Going ahead to step 6:
When dividing 565 by 99, we get 5 with a remainder of 70.
The next digit of our result is 5. 
Result so far: 6445.0
Subtract 495 from 565 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 7:
700 divided by 99 is 7 with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 6445.7
Deduct 693 from 700 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 8:
When dividing 70 by 99, we get 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 6445.7
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 9:
If we divide 700 by 99, we get 7 and a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 6445.707
Subtract 693 from 700 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 10:
99 goes into 70 0 times with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 6445.707
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 11:
The number 99 fits into 700 7 times, leaving a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 6445.70707
If we take 693 away from 700, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 12:
70 divided by 99 is 0 with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 6445.70707
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 13:
99 goes into 700 7 times with a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 6445.7070707
Deduct 693 from 700 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 14:
70 divided by 99 is 0 with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 6445.7070707
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 6445.7070707, with a leftover of 7e-08.