We look at the division of 15387984 by 988 
We want to figure out the number of times 15387984 can be divided by 988.

Going ahead to step 1:
If we divide 1 by 988, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 988

On to step 2:
988 goes into 15 0 times with a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Fetch the next digit (3) from the dividend, attach it to 15 and continue: 153 / 988

On to step 3:
988 goes into 153 0 times with a remainder of 153.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 153, we get 153.
Grab the next digit (8) from the dividend, add it to 153, then carry on: 1538 / 988

Step 4:
If we divide 1538 by 988, we get 1 and a remainder of 550.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 550 after subtracting 988 from 1538.
Append the next digit (7) from the dividend to 550 and continue with: 5507 / 988

Step 5:
When dividing 5507 by 988, we get 5 with a remainder of 567.
Put 5 as the next digit of the answer. 
Result so far: 15.0
The remainder is 567 after subtracting 4940 from 5507.
Append the next digit (9) from the dividend to 567 and continue with: 5679 / 988

Let's proceed to step 6:
When dividing 5679 by 988, we get 5 with a remainder of 739.
The number 5 becomes the next digit in our result. 
Result so far: 155.0
Subtract 4940 from 5679 to get 739.
Append the next digit (8) from the dividend to 739 and continue with: 7398 / 988

Step 7:
If we divide 7398 by 988, we get 7 and a remainder of 482.
Record the quotient 7 as the next digit in the result. 
Result so far: 1557.0
Deduct 6916 from 7398 and we're left with 482.
Bring next digit (4) of the dividend behind the 482 and repeat the process: 4824 / 988

Step 8:
988 can be fit into 4824 4 times, resulting in a remainder of 872.
Put 4 as the next digit of the answer. 
Result so far: 15574.0
Subtracting 3952 from 4824 leaves us with 872.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8720, and continue the process.

On to step 9:
The number 988 fits into 8720 8 times, leaving a remainder of 816.
Record the quotient 8 as the next digit in the result. 
Result so far: 15574.8
Subtract 7904 from 8720 to get 816.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8160, and continue the process.

Step 10:
988 can be fit into 8160 8 times, resulting in a remainder of 256.
The next digit of our result is 8. 
Result so far: 15574.88
If we subtract 7904 from 8160, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Our division results in 15574.88 with a remaining 0.256.