Let's divide 81690382 by 549
We want to figure out the number of times 81690382 can be divided by 549.

On to step 1:
When dividing 8 by 549, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 549

Let's proceed to step 2:
549 goes into 81 0 times with a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Fetch the next digit (6) from the dividend, attach it to 81 and continue: 816 / 549

Let's proceed to step 3:
549 goes into 816 1 times with a remainder of 267.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 549 from 816 leaves us with 267.
Append the next digit (9) from the dividend to 267 and continue with: 2679 / 549

Going ahead to step 4:
The number 549 fits into 2679 4 times, leaving a remainder of 483.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
The remainder is 483 after subtracting 2196 from 2679.
Include the next digit (0) from the dividend after 483, then repeat: 4830 / 549

Step 5:
549 can be fit into 4830 8 times, resulting in a remainder of 438.
Put 8 as the next digit of the answer. 
Result so far: 148.0
Subtracting 4392 from 4830 leaves us with 438.
Fetch the next digit (3) from the dividend, attach it to 438 and continue: 4383 / 549

Moving on to step 6:
549 goes into 4383 7 times with a remainder of 540.
The next digit of our result is 7. 
Result so far: 1487.0
Deduct 3843 from 4383 and we're left with 540.
Fetch the next digit (8) from the dividend, attach it to 540 and continue: 5408 / 549

Step 7:
If we divide 5408 by 549, we get 9 and a remainder of 467.
Put 9 as the next digit of the answer. 
Result so far: 14879.0
Subtracting 4941 from 5408 leaves us with 467.
Fetch the next digit (2) from the dividend, attach it to 467 and continue: 4672 / 549

Advancing to step 8:
The number 549 fits into 4672 8 times, leaving a remainder of 280.
Write down 8 as next digit of the result. 
Result so far: 148798.0
If we take 4392 away from 4672, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 9:
When dividing 2800 by 549, we get 5 with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 148798.5
If we take 2745 away from 2800, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 10:
549 can be fit into 550 1 times, resulting in a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 148798.51
If we take 549 away from 550, we end up 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 11:
When dividing 10 by 549, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 148798.51
If we take 0 away from 10, we end up 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.

Step 12:
When dividing 100 by 549, we get 0 with a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 148798.51
Deduct 0 from 100 and we're left with 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 148798.51 and a remainder of 0.001.