139746 divided by 1 
Our goal is to divide 139746 by 1.

Going ahead to step 1:
If we divide 1 by 1, we get 1 and a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 1 from 1 leaves us with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 1

Let's proceed to step 2:
The number 1 fits into 3 3 times, leaving a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 13.0
The remainder is 0 after subtracting 3 from 3.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 1

Moving on to step 3:
The number 1 fits into 9 9 times, leaving a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
The remainder is 0 after subtracting 9 from 9.
Bring next digit (7) of the dividend behind the 0 and repeat the process: 7 / 1

On to step 4:
7 divided by 1 is 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 1397.0
If we subtract 7 from 7, we get 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 1

Let's proceed to step 5:
4 divided by 1 is 4 with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 13974.0
Subtract 4 from 4 to get 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 1

Going ahead to step 6:
6 divided by 1 is 6 with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 139746.0
If we take 6 away from 6, we end up with 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 7:
0 divided by 1 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 139746.0
If we take 0 away from 0, we end up with 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 8:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 139746.0
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.

The final outcome is 139746.0, with a leftover of 0.0.