139341 divided by 12 
Let's see how many times 12 fits into 139341.

Let's proceed to step 1:
The number 12 fits into 1 0 times, leaving 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.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 12

Moving on to step 2:
12 can be fit into 13 1 times, resulting in a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 12 from 13 to get 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 12

Let's proceed to step 3:
12 can be fit into 19 1 times, resulting in a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Deduct 12 from 19 and we're left with 7.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 12

Moving on to step 4:
When dividing 73 by 12, we get 6 with a remainder of 1.
Write down 6 as next digit of the result. 
Result so far: 116.0
The remainder is 1 after subtracting 72 from 73.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 12

Advancing to step 5:
When dividing 14 by 12, we get 1 with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1161.0
The remainder is 2 after subtracting 12 from 14.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 12

On to step 6:
The number 12 fits into 21 1 times, leaving a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 11611.0
Deduct 12 from 21 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
The number 12 fits into 90 7 times, leaving a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 11611.7
Subtracting 84 from 90 leaves us 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.

Let's proceed to step 8:
The number 12 fits into 60 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 11611.75
If we subtract 60 from 60, 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.

Let's proceed to step 9:
When dividing 0 by 12, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 11611.75
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
The number 12 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 11611.75
If we subtract 0 from 0, 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.

The final outcome is 11611.75, with a leftover of 0.0.