71540899 divided by 858 
Our goal is to divide 71540899 by 858.

Moving on to step 1:
The number 858 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 858

Let's proceed to step 2:
71 divided by 858 is 0 with a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 71 and we're left with 71.
Grab the next digit (5) from the dividend, add it to 71, then carry on: 715 / 858

Advancing to step 3:
If we divide 715 by 858, we get 0 and a remainder of 715.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 715 leaves us with 715.
Include the next digit (4) from the dividend after 715, then repeat: 7154 / 858

Let's proceed to step 4:
858 can be fit into 7154 8 times, resulting in a remainder of 290.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 6864 away from 7154, we end up with 290.
Bring next digit (0) of the dividend behind the 290 and repeat the process: 2900 / 858

On to step 5:
858 goes into 2900 3 times with a remainder of 326.
Record the quotient 3 as the next digit in the result. 
Result so far: 83.0
Deduct 2574 from 2900 and we're left with 326.
Take the next digit (8) from the dividend and append it to 326, then repeat: 3268 / 858

Going ahead to step 6:
858 can be fit into 3268 3 times, resulting in a remainder of 694.
The next digit of our result is 3. 
Result so far: 833.0
Subtracting 2574 from 3268 leaves us with 694.
Bring next digit (9) of the dividend behind the 694 and repeat the process: 6949 / 858

Let's proceed to step 7:
858 goes into 6949 8 times with a remainder of 85.
Write down 8 as next digit of the result. 
Result so far: 8338.0
Subtract 6864 from 6949 to get 85.
Fetch the next digit (9) from the dividend, attach it to 85 and continue: 859 / 858

On to step 8:
If we divide 859 by 858, we get 1 and a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 83381.0
Deduct 858 from 859 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
The number 858 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 83381.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
If we divide 100 by 858, we get 0 and a remainder of 100.
The next digit of our result is 0. 
Result so far: 83381.0
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

After the division, we end up with 83381.0 and a remainder of 0.1.