We look at the division of 406586 by 39 
We want to figure out the number of times 406586 can be divided by 39.

Step 1:
The number 39 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 39

Advancing to step 2:
39 goes into 40 1 times with a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
If we take 39 away from 40, we end up with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 39

Moving on to step 3:
39 can be fit into 16 0 times, resulting in a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 16 to get 16.
Bring next digit (5) of the dividend behind the 16 and repeat the process: 165 / 39

Step 4:
The number 39 fits into 165 4 times, leaving a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
Subtract 156 from 165 to get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 39

On to step 5:
When dividing 98 by 39, we get 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 1042.0
The remainder is 20 after subtracting 78 from 98.
Include the next digit (6) from the dividend after 20, then repeat: 206 / 39

On to step 6:
The number 39 fits into 206 5 times, leaving a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 10425.0
The remainder is 11 after subtracting 195 from 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
110 divided by 39 is 2 with a remainder of 32.
The next digit of our result is 2. 
Result so far: 10425.2
The remainder is 32 after subtracting 78 from 110.
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 8:
39 goes into 320 8 times with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 10425.28
Subtracting 312 from 320 leaves us 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.

Going ahead to step 9:
The number 39 fits into 80 2 times, leaving a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 10425.282
If we take 78 away from 80, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 10:
If we divide 20 by 39, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 10425.282
Subtract 0 from 20 to 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.

On to step 11:
When dividing 200 by 39, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 10425.28205
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.

Moving on to step 12:
If we divide 50 by 39, we get 1 and a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 10425.282051
Deduct 39 from 50 and we're left 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.

On to step 13:
When dividing 110 by 39, we get 2 with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 10425.2820512
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.

Let's proceed to step 14:
39 can be fit into 320 8 times, resulting in a remainder of 8.
The next digit of our result is 8. 
Result so far: 10425.28205128
If we subtract 312 from 320, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 10425.28205128 with a remainder of 8e-09.