We look at the division of 15638397 by 325 
Let's see how many times 325 fits into 15638397.

Step 1:
If we divide 1 by 325, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 325

Advancing to step 2:
When dividing 15 by 325, we get 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Fetch the next digit (6) from the dividend, attach it to 15 and continue: 156 / 325

Step 3:
325 can be fit into 156 0 times, resulting in a remainder of 156.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 156, we get 156.
Take the next digit (3) from the dividend and append it to 156, then repeat: 1563 / 325

Step 4:
If we divide 1563 by 325, we get 4 and a remainder of 263.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 1300 from 1563 and we're left with 263.
Take the next digit (8) from the dividend and append it to 263, then repeat: 2638 / 325

Let's proceed to step 5:
When dividing 2638 by 325, we get 8 with a remainder of 38.
Put 8 as the next digit of the answer. 
Result so far: 48.0
If we subtract 2600 from 2638, we get 38.
Fetch the next digit (3) from the dividend, attach it to 38 and continue: 383 / 325

Going ahead to step 6:
325 can be fit into 383 1 times, resulting in a remainder of 58.
Record the quotient 1 as the next digit in the result. 
Result so far: 481.0
If we take 325 away from 383, we end up with 58.
Append the next digit (9) from the dividend to 58 and continue with: 589 / 325

Advancing to step 7:
589 divided by 325 is 1 with a remainder of 264.
Record the quotient 1 as the next digit in the result. 
Result so far: 4811.0
Subtracting 325 from 589 leaves us with 264.
Take the next digit (7) from the dividend and append it to 264, then repeat: 2647 / 325

Step 8:
325 goes into 2647 8 times with a remainder of 47.
Put 8 as the next digit of the answer. 
Result so far: 48118.0
The remainder is 47 after subtracting 2600 from 2647.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 9:
325 can be fit into 470 1 times, resulting in a remainder of 145.
Write down 1 as next digit of the result. 
Result so far: 48118.1
Subtract 325 from 470 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 10:
325 can be fit into 1450 4 times, resulting in a remainder of 150.
The number 4 becomes the next digit in our result. 
Result so far: 48118.14
If we subtract 1300 from 1450, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 11:
When dividing 1500 by 325, we get 4 with a remainder of 200.
Write down 4 as next digit of the result. 
Result so far: 48118.144
If we take 1300 away from 1500, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 48118.144, with a leftover of 0.02.