81532086 divided by 408 
Our goal is to divide 81532086 by 408.

Step 1:
8 divided by 408 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 408

Going ahead to step 2:
408 goes into 81 0 times with a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Grab the next digit (5) from the dividend, add it to 81, then carry on: 815 / 408

Going ahead to step 3:
815 divided by 408 is 1 with a remainder of 407.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 408 away from 815, we end up with 407.
Include the next digit (3) from the dividend after 407, then repeat: 4073 / 408

Step 4:
4073 divided by 408 is 9 with a remainder of 401.
Put 9 as the next digit of the answer. 
Result so far: 19.0
If we take 3672 away from 4073, we end up with 401.
Take the next digit (2) from the dividend and append it to 401, then repeat: 4012 / 408

Let's proceed to step 5:
408 can be fit into 4012 9 times, resulting in a remainder of 340.
Write down 9 as next digit of the result. 
Result so far: 199.0
The remainder is 340 after subtracting 3672 from 4012.
Take the next digit (0) from the dividend and append it to 340, then repeat: 3400 / 408

Step 6:
When dividing 3400 by 408, we get 8 with a remainder of 136.
Write down 8 as next digit of the result. 
Result so far: 1998.0
Subtract 3264 from 3400 to get 136.
Grab the next digit (8) from the dividend, add it to 136, then carry on: 1368 / 408

Step 7:
408 goes into 1368 3 times with a remainder of 144.
Use 3 as the next digit of our solution. 
Result so far: 19983.0
Subtracting 1224 from 1368 leaves us with 144.
Take the next digit (6) from the dividend and append it to 144, then repeat: 1446 / 408

Step 8:
When dividing 1446 by 408, we get 3 with a remainder of 222.
Record the quotient 3 as the next digit in the result. 
Result so far: 199833.0
Subtracting 1224 from 1446 leaves us with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Moving on to step 9:
If we divide 2220 by 408, we get 5 and a remainder of 180.
Record the quotient 5 as the next digit in the result. 
Result so far: 199833.5
Subtract 2040 from 2220 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 10:
If we divide 1800 by 408, we get 4 and a remainder of 168.
Use 4 as the next digit of our solution. 
Result so far: 199833.54
Deduct 1632 from 1800 and we're left with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Going ahead to step 11:
When dividing 1680 by 408, we get 4 with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 199833.544
If we subtract 1632 from 1680, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Our division results in 199833.544 with a remaining 0.0048.