15117248 ÷ 139 
We want to divide 15117248 by 139.

Moving on to step 1:
139 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 139

Advancing to step 2:
139 goes into 15 0 times with a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 139

Step 3:
The number 139 fits into 151 1 times, leaving a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 139 from 151, we get 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 139

Moving on to step 4:
When dividing 121 by 139, we get 0 with a remainder of 121.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we subtract 0 from 121, we get 121.
Append the next digit (7) from the dividend to 121 and continue with: 1217 / 139

On to step 5:
The number 139 fits into 1217 8 times, leaving a remainder of 105.
Write down 8 as next digit of the result. 
Result so far: 108.0
Subtract 1112 from 1217 to get 105.
Append the next digit (2) from the dividend to 105 and continue with: 1052 / 139

On to step 6:
1052 divided by 139 is 7 with a remainder of 79.
Use 7 as the next digit of our solution. 
Result so far: 1087.0
The remainder is 79 after subtracting 973 from 1052.
Grab the next digit (4) from the dividend, add it to 79, then carry on: 794 / 139

Advancing to step 7:
794 divided by 139 is 5 with a remainder of 99.
The number 5 becomes the next digit in our result. 
Result so far: 10875.0
Deduct 695 from 794 and we're left with 99.
Grab the next digit (8) from the dividend, add it to 99, then carry on: 998 / 139

Step 8:
The number 139 fits into 998 7 times, leaving a remainder of 25.
Put 7 as the next digit of the answer. 
Result so far: 108757.0
Subtract 973 from 998 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 9:
When dividing 250 by 139, we get 1 with a remainder of 111.
Write down 1 as next digit of the result. 
Result so far: 108757.1
Deduct 139 from 250 and we're left with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Let's proceed to step 10:
139 can be fit into 1110 7 times, resulting in a remainder of 137.
Put 7 as the next digit of the answer. 
Result so far: 108757.17
Deduct 973 from 1110 and we're left with 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

On to step 11:
When dividing 1370 by 139, we get 9 with a remainder of 119.
Use 9 as the next digit of our solution. 
Result so far: 108757.179
If we take 1251 away from 1370, we end up with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Advancing to step 12:
If we divide 1190 by 139, we get 8 and a remainder of 78.
The number 8 becomes the next digit in our result. 
Result so far: 108757.1798
If we subtract 1112 from 1190, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 13:
139 goes into 780 5 times with a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 108757.17985
If we subtract 695 from 780, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 14:
When dividing 850 by 139, we get 6 with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 108757.179856
Subtracting 834 from 850 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 15:
160 divided by 139 is 1 with a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 108757.1798561
Subtract 139 from 160 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 16:
139 goes into 210 1 times with a remainder of 71.
The number 1 becomes the next digit in our result. 
Result so far: 108757.17985611
Subtracting 139 from 210 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

The final outcome is 108757.17985611, with a leftover of 7.1e-08.