34231019 ÷ 858 
We want to divide 34231019 by 858.

Moving on to step 1:
If we divide 3 by 858, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 858

Moving on to step 2:
If we divide 34 by 858, we get 0 and a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 34 after subtracting 0 from 34.
Append the next digit (2) from the dividend to 34 and continue with: 342 / 858

Going ahead to step 3:
342 divided by 858 is 0 with a remainder of 342.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 342 after subtracting 0 from 342.
Bring next digit (3) of the dividend behind the 342 and repeat the process: 3423 / 858

Going ahead to step 4:
858 goes into 3423 3 times with a remainder of 849.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 2574 from 3423 and we're left with 849.
Grab the next digit (1) from the dividend, add it to 849, then carry on: 8491 / 858

Advancing to step 5:
858 can be fit into 8491 9 times, resulting in a remainder of 769.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Subtract 7722 from 8491 to get 769.
Bring next digit (0) of the dividend behind the 769 and repeat the process: 7690 / 858

Advancing to step 6:
858 goes into 7690 8 times with a remainder of 826.
The number 8 becomes the next digit in our result. 
Result so far: 398.0
Subtracting 6864 from 7690 leaves us with 826.
Include the next digit (1) from the dividend after 826, then repeat: 8261 / 858

On to step 7:
8261 divided by 858 is 9 with a remainder of 539.
The next digit of our result is 9. 
Result so far: 3989.0
Subtracting 7722 from 8261 leaves us with 539.
Fetch the next digit (9) from the dividend, attach it to 539 and continue: 5399 / 858

Step 8:
858 can be fit into 5399 6 times, resulting in a remainder of 251.
Write down 6 as next digit of the result. 
Result so far: 39896.0
If we subtract 5148 from 5399, we get 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Moving on to step 9:
When dividing 2510 by 858, we get 2 with a remainder of 794.
Record the quotient 2 as the next digit in the result. 
Result so far: 39896.2
If we take 1716 away from 2510, we end up with 794.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7940, and continue the process.

Advancing to step 10:
7940 divided by 858 is 9 with a remainder of 218.
The next digit of our result is 9. 
Result so far: 39896.29
The remainder is 218 after subtracting 7722 from 7940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Step 11:
If we divide 2180 by 858, we get 2 and a remainder of 464.
The number 2 becomes the next digit in our result. 
Result so far: 39896.292
Subtract 1716 from 2180 to get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Step 12:
4640 divided by 858 is 5 with a remainder of 350.
Put 5 as the next digit of the answer. 
Result so far: 39896.2925
If we subtract 4290 from 4640, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 13:
If we divide 3500 by 858, we get 4 and a remainder of 68.
The number 4 becomes the next digit in our result. 
Result so far: 39896.29254
If we subtract 3432 from 3500, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 14:
858 goes into 680 0 times with a remainder of 680.
Use 0 as the next digit of our solution. 
Result so far: 39896.29254
Deduct 0 from 680 and we're left with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Moving on to step 15:
When dividing 6800 by 858, we get 7 with a remainder of 794.
Use 7 as the next digit of our solution. 
Result so far: 39896.2925407
If we take 6006 away from 6800, we end up with 794.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7940, and continue the process.

Let's proceed to step 16:
7940 divided by 858 is 9 with a remainder of 218.
The next digit of our result is 9. 
Result so far: 39896.29254079
Subtract 7722 from 7940 to get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

In conclusion, the division gives 39896.29254079 with a balance of 2.18e-07.