81857058 divided by 408 
We want to divide 81857058 by 408.

Going ahead to step 1:
8 divided by 408 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 408

Moving on to step 2:
408 can be fit into 81 0 times, resulting in a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Grab the next digit (8) from the dividend, add it to 81, then carry on: 818 / 408

Advancing to step 3:
The number 408 fits into 818 2 times, leaving a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 816 away from 818, we end up with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 408

Advancing to step 4:
When dividing 25 by 408, we get 0 with a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtracting 0 from 25 leaves us with 25.
Grab the next digit (7) from the dividend, add it to 25, then carry on: 257 / 408

Let's proceed to step 5:
408 can be fit into 257 0 times, resulting in a remainder of 257.
Put 0 as the next digit of the answer. 
Result so far: 200.0
Subtracting 0 from 257 leaves us with 257.
Grab the next digit (0) from the dividend, add it to 257, then carry on: 2570 / 408

Step 6:
2570 divided by 408 is 6 with a remainder of 122.
Use 6 as the next digit of our solution. 
Result so far: 2006.0
The remainder is 122 after subtracting 2448 from 2570.
Fetch the next digit (5) from the dividend, attach it to 122 and continue: 1225 / 408

Advancing to step 7:
When dividing 1225 by 408, we get 3 with a remainder of 1.
The next digit of our result is 3. 
Result so far: 20063.0
Subtracting 1224 from 1225 leaves us with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 408

Going ahead to step 8:
When dividing 18 by 408, we get 0 with a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 200630.0
If we take 0 away from 18, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
408 goes into 180 0 times with a remainder of 180.
The next digit of our result is 0. 
Result so far: 200630.0
Subtracting 0 from 180 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 10:
408 goes into 1800 4 times with a remainder of 168.
The next digit of our result is 4. 
Result so far: 200630.04
If we subtract 1632 from 1800, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Moving on to step 11:
1680 divided by 408 is 4 with a remainder of 48.
The next digit of our result is 4. 
Result so far: 200630.044
If we take 1632 away from 1680, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final result is 200630.044 with a remainder of 0.0048.