80621437 ÷ 549 
We want to divide 80621437 by 549.

Going ahead to step 1:
The number 549 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 549

Going ahead to step 2:
549 goes into 80 0 times with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Append the next digit (6) from the dividend to 80 and continue with: 806 / 549

On to step 3:
If we divide 806 by 549, we get 1 and a remainder of 257.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 549 away from 806, we end up with 257.
Take the next digit (2) from the dividend and append it to 257, then repeat: 2572 / 549

Advancing to step 4:
2572 divided by 549 is 4 with a remainder of 376.
Use 4 as the next digit of our solution. 
Result so far: 14.0
If we take 2196 away from 2572, we end up with 376.
Append the next digit (1) from the dividend to 376 and continue with: 3761 / 549

Advancing to step 5:
If we divide 3761 by 549, we get 6 and a remainder of 467.
Use 6 as the next digit of our solution. 
Result so far: 146.0
If we take 3294 away from 3761, we end up with 467.
Append the next digit (4) from the dividend to 467 and continue with: 4674 / 549

Advancing to step 6:
4674 divided by 549 is 8 with a remainder of 282.
Write down 8 as next digit of the result. 
Result so far: 1468.0
Subtract 4392 from 4674 to get 282.
Append the next digit (3) from the dividend to 282 and continue with: 2823 / 549

Step 7:
If we divide 2823 by 549, we get 5 and a remainder of 78.
The number 5 becomes the next digit in our result. 
Result so far: 14685.0
If we subtract 2745 from 2823, we get 78.
Append the next digit (7) from the dividend to 78 and continue with: 787 / 549

Step 8:
549 goes into 787 1 times with a remainder of 238.
Write down 1 as next digit of the result. 
Result so far: 146851.0
If we take 549 away from 787, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

On to step 9:
If we divide 2380 by 549, we get 4 and a remainder of 184.
Put 4 as the next digit of the answer. 
Result so far: 146851.4
If we take 2196 away from 2380, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Going ahead to step 10:
If we divide 1840 by 549, we get 3 and a remainder of 193.
Use 3 as the next digit of our solution. 
Result so far: 146851.43
If we subtract 1647 from 1840, we get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Moving on to step 11:
The number 549 fits into 1930 3 times, leaving a remainder of 283.
The next digit of our result is 3. 
Result so far: 146851.433
If we subtract 1647 from 1930, we get 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

The final result is 146851.433 with a remainder of 0.0283.