Let's divide 140420 by 39
Our goal is to divide 140420 by 39.

Going ahead to step 1:
When dividing 1 by 39, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 39

Moving on to step 2:
14 divided by 39 is 0 with a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 14 after subtracting 0 from 14.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 39

Let's proceed to step 3:
39 can be fit into 140 3 times, resulting in a remainder of 23.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 117 away from 140, we end up with 23.
Fetch the next digit (4) from the dividend, attach it to 23 and continue: 234 / 39

Advancing to step 4:
39 can be fit into 234 6 times, resulting in a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 36.0
The remainder is 0 after subtracting 234 from 234.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 39

On to step 5:
39 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 360.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 39

Let's proceed to step 6:
39 goes into 20 0 times with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 3600.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 7:
If we divide 200 by 39, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 3600.5
Subtracting 195 from 200 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.

Moving on to step 8:
50 divided by 39 is 1 with a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 3600.51
Subtracting 39 from 50 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 9:
39 can be fit into 110 2 times, resulting in a remainder of 32.
The next digit of our result is 2. 
Result so far: 3600.512
Subtract 78 from 110 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 10:
320 divided by 39 is 8 with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 3600.5128
Deduct 312 from 320 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 11:
39 can be fit into 80 2 times, resulting in a remainder of 2.
The next digit of our result is 2. 
Result so far: 3600.51282
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 12:
39 can be fit into 20 0 times, resulting in a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 3600.51282
If we subtract 0 from 20, 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.

Moving on to step 13:
When dividing 200 by 39, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 3600.5128205
Deduct 195 from 200 and we're left 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.

On to step 14:
The number 39 fits into 50 1 times, leaving a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 3600.51282051
If we take 39 away from 50, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final result is 3600.51282051 with a remainder of 1.1e-08.