830570 ÷ 39 
Our goal is to divide 830570 by 39.

Step 1:
8 divided by 39 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 39

Moving on to step 2:
39 goes into 83 2 times with a remainder of 5.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 78 from 83 to get 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 39

Advancing to step 3:
39 can be fit into 50 1 times, resulting in a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtracting 39 from 50 leaves us with 11.
Grab the next digit (5) from the dividend, add it to 11, then carry on: 115 / 39

Let's proceed to step 4:
If we divide 115 by 39, we get 2 and a remainder of 37.
The number 2 becomes the next digit in our result. 
Result so far: 212.0
If we take 78 away from 115, we end up with 37.
Grab the next digit (7) from the dividend, add it to 37, then carry on: 377 / 39

Going ahead to step 5:
39 can be fit into 377 9 times, resulting in a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 2129.0
If we take 351 away from 377, we end up with 26.
Append the next digit (0) from the dividend to 26 and continue with: 260 / 39

Let's proceed to step 6:
39 goes into 260 6 times with a remainder of 26.
The next digit of our result is 6. 
Result so far: 21296.0
If we subtract 234 from 260, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 7:
39 goes into 260 6 times with a remainder of 26.
Put 6 as the next digit of the answer. 
Result so far: 21296.6
If we take 234 away from 260, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 8:
The number 39 fits into 260 6 times, leaving a remainder of 26.
The next digit of our result is 6. 
Result so far: 21296.66
If we subtract 234 from 260, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final outcome is 21296.66, with a leftover of 0.026.