We look at the division of 4203113 by 86 
Our goal is to divide 4203113 by 86.

Step 1:
When dividing 4 by 86, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 86

Let's proceed to step 2:
86 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Append the next digit (0) from the dividend to 42 and continue with: 420 / 86

Step 3:
420 divided by 86 is 4 with a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 344 from 420 and we're left with 76.
Fetch the next digit (3) from the dividend, attach it to 76 and continue: 763 / 86

On to step 4:
The number 86 fits into 763 8 times, leaving a remainder of 75.
Use 8 as the next digit of our solution. 
Result so far: 48.0
Deduct 688 from 763 and we're left with 75.
Include the next digit (1) from the dividend after 75, then repeat: 751 / 86

On to step 5:
751 divided by 86 is 8 with a remainder of 63.
Put 8 as the next digit of the answer. 
Result so far: 488.0
If we take 688 away from 751, we end up with 63.
Include the next digit (1) from the dividend after 63, then repeat: 631 / 86

Step 6:
86 can be fit into 631 7 times, resulting in a remainder of 29.
The next digit of our result is 7. 
Result so far: 4887.0
Deduct 602 from 631 and we're left with 29.
Append the next digit (3) from the dividend to 29 and continue with: 293 / 86

Let's proceed to step 7:
If we divide 293 by 86, we get 3 and a remainder of 35.
The number 3 becomes the next digit in our result. 
Result so far: 48873.0
If we take 258 away from 293, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 8:
86 goes into 350 4 times with a remainder of 6.
Write down 4 as next digit of the result. 
Result so far: 48873.4
The remainder is 6 after subtracting 344 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
86 goes into 60 0 times with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 48873.4
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 10:
When dividing 600 by 86, we get 6 with a remainder of 84.
Put 6 as the next digit of the answer. 
Result so far: 48873.406
If we subtract 516 from 600, 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.

On to step 11:
When dividing 840 by 86, we get 9 with a remainder of 66.
Use 9 as the next digit of our solution. 
Result so far: 48873.4069
Deduct 774 from 840 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 12:
When dividing 660 by 86, we get 7 with a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 48873.40697
Deduct 602 from 660 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 13:
86 goes into 580 6 times with a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 48873.406976
Subtract 516 from 580 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 14:
If we divide 640 by 86, we get 7 and a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 48873.4069767
Deduct 602 from 640 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 15:
If we divide 380 by 86, we get 4 and a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 48873.40697674
Subtracting 344 from 380 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Our division results in 48873.40697674 with a remaining 3.6e-08.