139642 divided by 80 
We're looking to find how many times 80 goes into 139642.

On to step 1:
The number 80 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 80

Let's proceed to step 2:
When dividing 13 by 80, we get 0 with a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Append the next digit (9) from the dividend to 13 and continue with: 139 / 80

Moving on to step 3:
139 divided by 80 is 1 with a remainder of 59.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 80 from 139 to get 59.
Fetch the next digit (6) from the dividend, attach it to 59 and continue: 596 / 80

Moving on to step 4:
80 can be fit into 596 7 times, resulting in a remainder of 36.
Use 7 as the next digit of our solution. 
Result so far: 17.0
The remainder is 36 after subtracting 560 from 596.
Take the next digit (4) from the dividend and append it to 36, then repeat: 364 / 80

Step 5:
80 can be fit into 364 4 times, resulting in a remainder of 44.
The next digit of our result is 4. 
Result so far: 174.0
If we take 320 away from 364, we end up with 44.
Fetch the next digit (2) from the dividend, attach it to 44 and continue: 442 / 80

Let's proceed to step 6:
80 can be fit into 442 5 times, resulting in a remainder of 42.
The next digit of our result is 5. 
Result so far: 1745.0
Subtracting 400 from 442 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 7:
When dividing 420 by 80, we get 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 1745.5
If we subtract 400 from 420, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
200 divided by 80 is 2 with a remainder of 40.
Use 2 as the next digit of our solution. 
Result so far: 1745.52
The remainder is 40 after subtracting 160 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 9:
When dividing 400 by 80, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 1745.525
If we subtract 400 from 400, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
If we divide 0 by 80, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 1745.525
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
80 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1745.525
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 1745.525 with a balance of 0.0.