138521 divided by 86 
We want to divide 138521 by 86.

Advancing to step 1:
86 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 86

Going ahead to step 2:
The number 86 fits into 13 0 times, leaving a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 86

Moving on to step 3:
86 can be fit into 138 1 times, resulting in a remainder of 52.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 86 from 138 to get 52.
Grab the next digit (5) from the dividend, add it to 52, then carry on: 525 / 86

Let's proceed to step 4:
86 goes into 525 6 times with a remainder of 9.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 516 away from 525, we end up with 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 86

Advancing to step 5:
86 can be fit into 92 1 times, resulting in a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 161.0
The remainder is 6 after subtracting 86 from 92.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 86

On to step 6:
The number 86 fits into 61 0 times, leaving a remainder of 61.
Write down 0 as next digit of the result. 
Result so far: 1610.0
Subtract 0 from 61 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Advancing to step 7:
610 divided by 86 is 7 with a remainder of 8.
The number 7 becomes the next digit in our result. 
Result so far: 1610.7
The remainder is 8 after subtracting 602 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
86 goes into 80 0 times with a remainder of 80.
The next digit of our result is 0. 
Result so far: 1610.7
If we subtract 0 from 80, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 9:
If we divide 800 by 86, we get 9 and a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 1610.709
Deduct 774 from 800 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 10:
260 divided by 86 is 3 with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 1610.7093
Subtract 258 from 260 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 11:
86 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 1610.7093
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
When dividing 200 by 86, we get 2 with a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 1610.709302
Subtract 172 from 200 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 13:
If we divide 280 by 86, we get 3 and a remainder of 22.
The next digit of our result is 3. 
Result so far: 1610.7093023
If we subtract 258 from 280, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 14:
If we divide 220 by 86, we get 2 and a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 1610.70930232
If we take 172 away from 220, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Our division results in 1610.70930232 with a remaining 4.8e-08.