81830521 ÷ 50 
Our goal is to divide 81830521 by 50.

Let's proceed to step 1:
50 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 50

On to step 2:
50 goes into 81 1 times with a remainder of 31.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 31 after subtracting 50 from 81.
Fetch the next digit (8) from the dividend, attach it to 31 and continue: 318 / 50

Going ahead to step 3:
If we divide 318 by 50, we get 6 and a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
Subtract 300 from 318 to get 18.
Include the next digit (3) from the dividend after 18, then repeat: 183 / 50

On to step 4:
50 can be fit into 183 3 times, resulting in a remainder of 33.
Record the quotient 3 as the next digit in the result. 
Result so far: 163.0
Subtract 150 from 183 to get 33.
Bring next digit (0) of the dividend behind the 33 and repeat the process: 330 / 50

Moving on to step 5:
If we divide 330 by 50, we get 6 and a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 1636.0
The remainder is 30 after subtracting 300 from 330.
Include the next digit (5) from the dividend after 30, then repeat: 305 / 50

Step 6:
305 divided by 50 is 6 with a remainder of 5.
Write down 6 as next digit of the result. 
Result so far: 16366.0
Subtract 300 from 305 to get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 50

Let's proceed to step 7:
The number 50 fits into 52 1 times, leaving a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 163661.0
Subtracting 50 from 52 leaves us with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 50

Step 8:
50 goes into 21 0 times with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 1636610.0
If we take 0 away from 21, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 9:
50 goes into 210 4 times with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 1636610.4
Deduct 200 from 210 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
50 can be fit into 100 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 1636610.42
Subtracting 100 from 100 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 11:
The number 50 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1636610.42
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 12:
0 divided by 50 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1636610.42
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 1636610.42, with a leftover of 0.0.