We're dividing 13859243 by 103 
Let's see how many times 103 fits into 13859243.

Moving on to step 1:
If we divide 1 by 103, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 103

Moving on to step 2:
13 divided by 103 is 0 with a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 103

Advancing to step 3:
When dividing 138 by 103, we get 1 with a remainder of 35.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 103 from 138 and we're left with 35.
Include the next digit (5) from the dividend after 35, then repeat: 355 / 103

On to step 4:
If we divide 355 by 103, we get 3 and a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Deduct 309 from 355 and we're left with 46.
Bring next digit (9) of the dividend behind the 46 and repeat the process: 469 / 103

On to step 5:
The number 103 fits into 469 4 times, leaving a remainder of 57.
The next digit of our result is 4. 
Result so far: 134.0
The remainder is 57 after subtracting 412 from 469.
Grab the next digit (2) from the dividend, add it to 57, then carry on: 572 / 103

Step 6:
103 goes into 572 5 times with a remainder of 57.
Record the quotient 5 as the next digit in the result. 
Result so far: 1345.0
Subtracting 515 from 572 leaves us with 57.
Append the next digit (4) from the dividend to 57 and continue with: 574 / 103

Advancing to step 7:
103 goes into 574 5 times with a remainder of 59.
The next digit of our result is 5. 
Result so far: 13455.0
Deduct 515 from 574 and we're left with 59.
Include the next digit (3) from the dividend after 59, then repeat: 593 / 103

Let's proceed to step 8:
103 can be fit into 593 5 times, resulting in a remainder of 78.
The number 5 becomes the next digit in our result. 
Result so far: 134555.0
Subtract 515 from 593 to 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.

Going ahead to step 9:
103 can be fit into 780 7 times, resulting in a remainder of 59.
Write down 7 as next digit of the result. 
Result so far: 134555.7
The remainder is 59 after subtracting 721 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 10:
If we divide 590 by 103, we get 5 and a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 134555.75
Subtract 515 from 590 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 11:
When dividing 750 by 103, we get 7 with a remainder of 29.
Record the quotient 7 as the next digit in the result. 
Result so far: 134555.757
Subtract 721 from 750 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 12:
When dividing 290 by 103, we get 2 with a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 134555.7572
If we subtract 206 from 290, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 13:
103 can be fit into 840 8 times, resulting in a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 134555.75728
The remainder is 16 after subtracting 824 from 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 14:
160 divided by 103 is 1 with a remainder of 57.
Record the quotient 1 as the next digit in the result. 
Result so far: 134555.757281
Subtract 103 from 160 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 15:
103 goes into 570 5 times with a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 134555.7572815
Subtracting 515 from 570 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 16:
The number 103 fits into 550 5 times, leaving a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 134555.75728155
Subtract 515 from 550 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The final outcome is 134555.75728155, with a leftover of 3.5e-08.