Let's divide 646090 by 39
We want to divide 646090 by 39.

Let's proceed to step 1:
If we divide 6 by 39, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 39

Advancing to step 2:
39 goes into 64 1 times with a remainder of 25.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 39 from 64, we get 25.
Fetch the next digit (6) from the dividend, attach it to 25 and continue: 256 / 39

Advancing to step 3:
If we divide 256 by 39, we get 6 and a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
If we take 234 away from 256, we end up with 22.
Include the next digit (0) from the dividend after 22, then repeat: 220 / 39

Step 4:
220 divided by 39 is 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 165.0
If we take 195 away from 220, we end up with 25.
Take the next digit (9) from the dividend and append it to 25, then repeat: 259 / 39

On to step 5:
When dividing 259 by 39, we get 6 with a remainder of 25.
Use 6 as the next digit of our solution. 
Result so far: 1656.0
If we subtract 234 from 259, we get 25.
Fetch the next digit (0) from the dividend, attach it to 25 and continue: 250 / 39

Moving on to step 6:
250 divided by 39 is 6 with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 16566.0
Deduct 234 from 250 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
160 divided by 39 is 4 with a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 16566.4
The remainder is 4 after subtracting 156 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
The number 39 fits into 40 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 16566.41
If we subtract 39 from 40, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 9:
39 goes into 10 0 times with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 16566.41
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
When dividing 100 by 39, we get 2 with a remainder of 22.
Write down 2 as next digit of the result. 
Result so far: 16566.4102
Deduct 78 from 100 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 11:
When dividing 220 by 39, we get 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 16566.41025
Deduct 195 from 220 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 12:
39 goes into 250 6 times with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 16566.410256
If we take 234 away from 250, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 13:
The number 39 fits into 160 4 times, leaving a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 16566.4102564
Subtracting 156 from 160 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 14:
If we divide 40 by 39, we get 1 and a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 16566.41025641
If we subtract 39 from 40, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 16566.41025641, with a leftover of 1e-09.