41257880 ÷ 858 
Our goal is to divide 41257880 by 858.

Advancing to step 1:
4 divided by 858 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 858

Going ahead to step 2:
The number 858 fits into 41 0 times, leaving a remainder of 41.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 41 and we're left with 41.
Append the next digit (2) from the dividend to 41 and continue with: 412 / 858

Advancing to step 3:
858 can be fit into 412 0 times, resulting in a remainder of 412.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 412, we end up with 412.
Append the next digit (5) from the dividend to 412 and continue with: 4125 / 858

Step 4:
If we divide 4125 by 858, we get 4 and a remainder of 693.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 3432 from 4125, we get 693.
Grab the next digit (7) from the dividend, add it to 693, then carry on: 6937 / 858

Let's proceed to step 5:
6937 divided by 858 is 8 with a remainder of 73.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
Subtracting 6864 from 6937 leaves us with 73.
Take the next digit (8) from the dividend and append it to 73, then repeat: 738 / 858

Moving on to step 6:
738 divided by 858 is 0 with a remainder of 738.
The next digit of our result is 0. 
Result so far: 480.0
Deduct 0 from 738 and we're left with 738.
Grab the next digit (8) from the dividend, add it to 738, then carry on: 7388 / 858

Step 7:
858 goes into 7388 8 times with a remainder of 524.
Record the quotient 8 as the next digit in the result. 
Result so far: 4808.0
Subtracting 6864 from 7388 leaves us with 524.
Include the next digit (0) from the dividend after 524, then repeat: 5240 / 858

Moving on to step 8:
858 can be fit into 5240 6 times, resulting in a remainder of 92.
Put 6 as the next digit of the answer. 
Result so far: 48086.0
If we take 5148 away from 5240, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 9:
920 divided by 858 is 1 with a remainder of 62.
Use 1 as the next digit of our solution. 
Result so far: 48086.1
If we subtract 858 from 920, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 10:
The number 858 fits into 620 0 times, leaving a remainder of 620.
Put 0 as the next digit of the answer. 
Result so far: 48086.1
The remainder is 620 after subtracting 0 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 11:
The number 858 fits into 6200 7 times, leaving a remainder of 194.
The next digit of our result is 7. 
Result so far: 48086.107
If we subtract 6006 from 6200, we get 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Step 12:
The number 858 fits into 1940 2 times, leaving a remainder of 224.
The next digit of our result is 2. 
Result so far: 48086.1072
The remainder is 224 after subtracting 1716 from 1940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 13:
858 can be fit into 2240 2 times, resulting in a remainder of 524.
Record the quotient 2 as the next digit in the result. 
Result so far: 48086.10722
If we take 1716 away from 2240, we end up with 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

The final result is 48086.10722 with a remainder of 0.000524.