4313378 ÷ 858 
We want to divide 4313378 by 858.

Let's proceed to step 1:
858 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 858

Moving on to step 2:
858 goes into 43 0 times with a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Take the next digit (1) from the dividend and append it to 43, then repeat: 431 / 858

Step 3:
431 divided by 858 is 0 with a remainder of 431.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 431, we get 431.
Fetch the next digit (3) from the dividend, attach it to 431 and continue: 4313 / 858

On to step 4:
When dividing 4313 by 858, we get 5 with a remainder of 23.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 4290 from 4313 leaves us with 23.
Append the next digit (3) from the dividend to 23 and continue with: 233 / 858

Moving on to step 5:
If we divide 233 by 858, we get 0 and a remainder of 233.
Write down 0 as next digit of the result. 
Result so far: 50.0
Deduct 0 from 233 and we're left with 233.
Fetch the next digit (7) from the dividend, attach it to 233 and continue: 2337 / 858

Going ahead to step 6:
If we divide 2337 by 858, we get 2 and a remainder of 621.
The number 2 becomes the next digit in our result. 
Result so far: 502.0
Deduct 1716 from 2337 and we're left with 621.
Fetch the next digit (8) from the dividend, attach it to 621 and continue: 6218 / 858

Moving on to step 7:
6218 divided by 858 is 7 with a remainder of 212.
Write down 7 as next digit of the result. 
Result so far: 5027.0
If we take 6006 away from 6218, we end up with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Let's proceed to step 8:
The number 858 fits into 2120 2 times, leaving a remainder of 404.
Write down 2 as next digit of the result. 
Result so far: 5027.2
Deduct 1716 from 2120 and we're left with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Advancing to step 9:
If we divide 4040 by 858, we get 4 and a remainder of 608.
Put 4 as the next digit of the answer. 
Result so far: 5027.24
The remainder is 608 after subtracting 3432 from 4040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Advancing to step 10:
The number 858 fits into 6080 7 times, leaving a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 5027.247
Deduct 6006 from 6080 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 11:
858 can be fit into 740 0 times, resulting in a remainder of 740.
The next digit of our result is 0. 
Result so far: 5027.247
Deduct 0 from 740 and we're left with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Going ahead to step 12:
The number 858 fits into 7400 8 times, leaving a remainder of 536.
The number 8 becomes the next digit in our result. 
Result so far: 5027.24708
The remainder is 536 after subtracting 6864 from 7400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Step 13:
When dividing 5360 by 858, we get 6 with a remainder of 212.
Use 6 as the next digit of our solution. 
Result so far: 5027.247086
Subtracting 5148 from 5360 leaves us with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Advancing to step 14:
The number 858 fits into 2120 2 times, leaving a remainder of 404.
The next digit of our result is 2. 
Result so far: 5027.2470862
Subtracting 1716 from 2120 leaves us with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Let's proceed to step 15:
The number 858 fits into 4040 4 times, leaving a remainder of 608.
Put 4 as the next digit of the answer. 
Result so far: 5027.24708624
If we subtract 3432 from 4040, we get 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

The final outcome is 5027.24708624, with a leftover of 6.08e-07.