1453234 ÷ 858 
We want to figure out the number of times 1453234 can be divided by 858.

Advancing to step 1:
The number 858 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 858

Step 2:
858 goes into 14 0 times with a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 14 leaves us with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 858

Advancing to step 3:
858 goes into 145 0 times with a remainder of 145.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 145 to get 145.
Fetch the next digit (3) from the dividend, attach it to 145 and continue: 1453 / 858

On to step 4:
858 can be fit into 1453 1 times, resulting in a remainder of 595.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 858 from 1453 to get 595.
Take the next digit (2) from the dividend and append it to 595, then repeat: 5952 / 858

Advancing to step 5:
The number 858 fits into 5952 6 times, leaving a remainder of 804.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
The remainder is 804 after subtracting 5148 from 5952.
Fetch the next digit (3) from the dividend, attach it to 804 and continue: 8043 / 858

On to step 6:
858 goes into 8043 9 times with a remainder of 321.
Write down 9 as next digit of the result. 
Result so far: 169.0
Deduct 7722 from 8043 and we're left with 321.
Fetch the next digit (4) from the dividend, attach it to 321 and continue: 3214 / 858

Advancing to step 7:
If we divide 3214 by 858, we get 3 and a remainder of 640.
The next digit of our result is 3. 
Result so far: 1693.0
If we subtract 2574 from 3214, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 8:
858 goes into 6400 7 times with a remainder of 394.
The next digit of our result is 7. 
Result so far: 1693.7
Subtracting 6006 from 6400 leaves us with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Step 9:
The number 858 fits into 3940 4 times, leaving a remainder of 508.
Put 4 as the next digit of the answer. 
Result so far: 1693.74
If we take 3432 away from 3940, we end up with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Going ahead to step 10:
858 goes into 5080 5 times with a remainder of 790.
Use 5 as the next digit of our solution. 
Result so far: 1693.745
Subtract 4290 from 5080 to get 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7900, and continue the process.

Let's proceed to step 11:
7900 divided by 858 is 9 with a remainder of 178.
Record the quotient 9 as the next digit in the result. 
Result so far: 1693.7459
If we subtract 7722 from 7900, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Advancing to step 12:
1780 divided by 858 is 2 with a remainder of 64.
The next digit of our result is 2. 
Result so far: 1693.74592
Subtracting 1716 from 1780 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 13:
The number 858 fits into 640 0 times, leaving a remainder of 640.
The number 0 becomes the next digit in our result. 
Result so far: 1693.74592
If we subtract 0 from 640, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 14:
When dividing 6400 by 858, we get 7 with a remainder of 394.
Record the quotient 7 as the next digit in the result. 
Result so far: 1693.7459207
If we subtract 6006 from 6400, we get 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Advancing to step 15:
3940 divided by 858 is 4 with a remainder of 508.
The next digit of our result is 4. 
Result so far: 1693.74592074
Subtract 3432 from 3940 to get 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Our division results in 1693.74592074 with a remaining 5.08e-07.