Let's divide 15134426 by 858
We want to figure out the number of times 15134426 can be divided by 858.

On to step 1:
858 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 858

On to step 2:
858 can be fit into 15 0 times, resulting in a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Include the next digit (1) from the dividend after 15, then repeat: 151 / 858

On to step 3:
858 goes into 151 0 times with a remainder of 151.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 151 to get 151.
Include the next digit (3) from the dividend after 151, then repeat: 1513 / 858

Let's proceed to step 4:
858 can be fit into 1513 1 times, resulting in a remainder of 655.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 858 from 1513, we get 655.
Include the next digit (4) from the dividend after 655, then repeat: 6554 / 858

Step 5:
If we divide 6554 by 858, we get 7 and a remainder of 548.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we take 6006 away from 6554, we end up with 548.
Take the next digit (4) from the dividend and append it to 548, then repeat: 5484 / 858

Moving on to step 6:
858 goes into 5484 6 times with a remainder of 336.
Put 6 as the next digit of the answer. 
Result so far: 176.0
Subtract 5148 from 5484 to get 336.
Bring next digit (2) of the dividend behind the 336 and repeat the process: 3362 / 858

Advancing to step 7:
858 goes into 3362 3 times with a remainder of 788.
Write down 3 as next digit of the result. 
Result so far: 1763.0
If we take 2574 away from 3362, we end up with 788.
Take the next digit (6) from the dividend and append it to 788, then repeat: 7886 / 858

Step 8:
858 goes into 7886 9 times with a remainder of 164.
Write down 9 as next digit of the result. 
Result so far: 17639.0
The remainder is 164 after subtracting 7722 from 7886.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Let's proceed to step 9:
The number 858 fits into 1640 1 times, leaving a remainder of 782.
The number 1 becomes the next digit in our result. 
Result so far: 17639.1
If we subtract 858 from 1640, we get 782.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7820, and continue the process.

Let's proceed to step 10:
The number 858 fits into 7820 9 times, leaving a remainder of 98.
Record the quotient 9 as the next digit in the result. 
Result so far: 17639.19
Deduct 7722 from 7820 and we're left with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

On to step 11:
858 can be fit into 980 1 times, resulting in a remainder of 122.
Record the quotient 1 as the next digit in the result. 
Result so far: 17639.191
Subtract 858 from 980 to get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 12:
1220 divided by 858 is 1 with a remainder of 362.
Record the quotient 1 as the next digit in the result. 
Result so far: 17639.1911
If we subtract 858 from 1220, we get 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

The final outcome is 17639.1911, with a leftover of 0.00362.