139910 ÷ 86 
Our goal is to divide 139910 by 86.

Let's proceed to step 1:
1 divided by 86 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 86

Advancing to step 2:
13 divided by 86 is 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 86

Going ahead to step 3:
86 can be fit into 139 1 times, resulting in a remainder of 53.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 86 from 139 leaves us with 53.
Append the next digit (9) from the dividend to 53 and continue with: 539 / 86

Step 4:
539 divided by 86 is 6 with a remainder of 23.
The next digit of our result is 6. 
Result so far: 16.0
Subtract 516 from 539 to get 23.
Grab the next digit (1) from the dividend, add it to 23, then carry on: 231 / 86

Advancing to step 5:
The number 86 fits into 231 2 times, leaving a remainder of 59.
The number 2 becomes the next digit in our result. 
Result so far: 162.0
If we subtract 172 from 231, we get 59.
Take the next digit (0) from the dividend and append it to 59, then repeat: 590 / 86

Moving on to step 6:
590 divided by 86 is 6 with a remainder of 74.
Write down 6 as next digit of the result. 
Result so far: 1626.0
If we take 516 away from 590, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 7:
740 divided by 86 is 8 with a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 1626.8
If we take 688 away from 740, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 8:
86 goes into 520 6 times with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 1626.86
If we subtract 516 from 520, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
86 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 1626.86
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
86 can be fit into 400 4 times, resulting in a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 1626.8604
The remainder is 56 after subtracting 344 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 11:
86 goes into 560 6 times with a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 1626.86046
Deduct 516 from 560 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 12:
The number 86 fits into 440 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 1626.860465
Subtracting 430 from 440 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 13:
The number 86 fits into 100 1 times, leaving a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 1626.8604651
Subtracting 86 from 100 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 14:
The number 86 fits into 140 1 times, leaving a remainder of 54.
Put 1 as the next digit of the answer. 
Result so far: 1626.86046511
Subtract 86 from 140 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Our division results in 1626.86046511 with a remaining 5.4e-08.