We look at the division of 858389 by 39 
Our goal is to divide 858389 by 39.

Moving on to step 1:
The number 39 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 39

Moving on to step 2:
If we divide 85 by 39, we get 2 and a remainder of 7.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 78 from 85 and we're left with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 39

On to step 3:
39 goes into 78 2 times with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtract 78 from 78 to get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 39

Step 4:
39 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 220.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 39

Advancing to step 5:
The number 39 fits into 38 0 times, leaving a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 2200.0
If we subtract 0 from 38, we get 38.
Bring next digit (9) of the dividend behind the 38 and repeat the process: 389 / 39

On to step 6:
39 goes into 389 9 times with a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 22009.0
Subtract 351 from 389 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 7:
If we divide 380 by 39, we get 9 and a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 22009.9
Subtracting 351 from 380 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 8:
If we divide 290 by 39, we get 7 and a remainder of 17.
Write down 7 as next digit of the result. 
Result so far: 22009.97
Deduct 273 from 290 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 9:
When dividing 170 by 39, we get 4 with a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 22009.974
Subtract 156 from 170 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 10:
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: 22009.9743
Deduct 117 from 140 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 11:
The number 39 fits into 230 5 times, leaving a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 22009.97435
The remainder is 35 after subtracting 195 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 12:
39 can be fit into 350 8 times, resulting in a remainder of 38.
The number 8 becomes the next digit in our result. 
Result so far: 22009.974358
Subtracting 312 from 350 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 13:
If we divide 380 by 39, we get 9 and a remainder of 29.
The next digit of our result is 9. 
Result so far: 22009.9743589
Subtract 351 from 380 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 14:
290 divided by 39 is 7 with a remainder of 17.
Record the quotient 7 as the next digit in the result. 
Result so far: 22009.97435897
Subtract 273 from 290 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

After the division, we end up with 22009.97435897 and a remainder of 1.7e-08.