Let's divide 139899 by 71
Let's see how many times 71 fits into 139899.

On to step 1:
71 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 71

On to step 2:
When dividing 13 by 71, we get 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Append the next digit (9) from the dividend to 13 and continue with: 139 / 71

Let's proceed to step 3:
When dividing 139 by 71, we get 1 with a remainder of 68.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 71 from 139 and we're left with 68.
Grab the next digit (8) from the dividend, add it to 68, then carry on: 688 / 71

Step 4:
71 goes into 688 9 times with a remainder of 49.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtract 639 from 688 to get 49.
Include the next digit (9) from the dividend after 49, then repeat: 499 / 71

Let's proceed to step 5:
71 goes into 499 7 times with a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 197.0
Deduct 497 from 499 and we're left with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 71

Advancing to step 6:
71 goes into 29 0 times with a remainder of 29.
Record the quotient 0 as the next digit in the result. 
Result so far: 1970.0
Subtract 0 from 29 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.

Step 7:
The number 71 fits into 290 4 times, leaving a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 1970.4
Deduct 284 from 290 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
If we divide 60 by 71, we get 0 and a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 1970.4
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 9:
71 goes into 600 8 times with a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 1970.408
Subtracting 568 from 600 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 10:
If we divide 320 by 71, we get 4 and a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 1970.4084
Subtracting 284 from 320 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.

Moving on to step 11:
360 divided by 71 is 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 1970.40845
Subtracting 355 from 360 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 12:
If we divide 50 by 71, we get 0 and a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 1970.40845
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 13:
The number 71 fits into 500 7 times, leaving a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 1970.4084507
If we subtract 497 from 500, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 14:
71 can be fit into 30 0 times, resulting in a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 1970.4084507
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 1970.4084507, with a leftover of 3e-08.