We're dividing 2392420 by 858 
Our goal is to divide 2392420 by 858.

Let's proceed to step 1:
858 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 858

Step 2:
858 goes into 23 0 times with a remainder of 23.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 23, we get 23.
Fetch the next digit (9) from the dividend, attach it to 23 and continue: 239 / 858

Advancing to step 3:
239 divided by 858 is 0 with a remainder of 239.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 239 and we're left with 239.
Bring next digit (2) of the dividend behind the 239 and repeat the process: 2392 / 858

Moving on to step 4:
If we divide 2392 by 858, we get 2 and a remainder of 676.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 1716 from 2392 to get 676.
Grab the next digit (4) from the dividend, add it to 676, then carry on: 6764 / 858

Advancing to step 5:
When dividing 6764 by 858, we get 7 with a remainder of 758.
Put 7 as the next digit of the answer. 
Result so far: 27.0
If we take 6006 away from 6764, we end up with 758.
Fetch the next digit (2) from the dividend, attach it to 758 and continue: 7582 / 858

Moving on to step 6:
858 goes into 7582 8 times with a remainder of 718.
Use 8 as the next digit of our solution. 
Result so far: 278.0
Deduct 6864 from 7582 and we're left with 718.
Include the next digit (0) from the dividend after 718, then repeat: 7180 / 858

Advancing to step 7:
The number 858 fits into 7180 8 times, leaving a remainder of 316.
Use 8 as the next digit of our solution. 
Result so far: 2788.0
If we take 6864 away from 7180, we end up with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Advancing to step 8:
The number 858 fits into 3160 3 times, leaving a remainder of 586.
Write down 3 as next digit of the result. 
Result so far: 2788.3
The remainder is 586 after subtracting 2574 from 3160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Let's proceed to step 9:
5860 divided by 858 is 6 with a remainder of 712.
Use 6 as the next digit of our solution. 
Result so far: 2788.36
If we take 5148 away from 5860, we end up with 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

Step 10:
858 can be fit into 7120 8 times, resulting in a remainder of 256.
Record the quotient 8 as the next digit in the result. 
Result so far: 2788.368
Deduct 6864 from 7120 and we're left with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Going ahead to step 11:
858 goes into 2560 2 times with a remainder of 844.
The next digit of our result is 2. 
Result so far: 2788.3682
If we take 1716 away from 2560, we end up with 844.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8440, and continue the process.

On to step 12:
858 can be fit into 8440 9 times, resulting in a remainder of 718.
Use 9 as the next digit of our solution. 
Result so far: 2788.36829
The remainder is 718 after subtracting 7722 from 8440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7180, and continue the process.

Going ahead to step 13:
858 can be fit into 7180 8 times, resulting in a remainder of 316.
Write down 8 as next digit of the result. 
Result so far: 2788.368298
Subtract 6864 from 7180 to get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Let's proceed to step 14:
858 can be fit into 3160 3 times, resulting in a remainder of 586.
The next digit of our result is 3. 
Result so far: 2788.3682983
If we take 2574 away from 3160, we end up with 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Advancing to step 15:
858 goes into 5860 6 times with a remainder of 712.
Put 6 as the next digit of the answer. 
Result so far: 2788.36829836
If we subtract 5148 from 5860, we get 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

The final outcome is 2788.36829836, with a leftover of 7.12e-07.