578249 divided by 621 
We want to divide 578249 by 621.

Moving on to step 1:
621 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 621

Advancing to step 2:
If we divide 57 by 621, we get 0 and a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Include the next digit (8) from the dividend after 57, then repeat: 578 / 621

Advancing to step 3:
621 can be fit into 578 0 times, resulting in a remainder of 578.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 578 after subtracting 0 from 578.
Grab the next digit (2) from the dividend, add it to 578, then carry on: 5782 / 621

Step 4:
The number 621 fits into 5782 9 times, leaving a remainder of 193.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 5589 from 5782 leaves us with 193.
Include the next digit (4) from the dividend after 193, then repeat: 1934 / 621

Advancing to step 5:
When dividing 1934 by 621, we get 3 with a remainder of 71.
Write down 3 as next digit of the result. 
Result so far: 93.0
If we take 1863 away from 1934, we end up with 71.
Append the next digit (9) from the dividend to 71 and continue with: 719 / 621

Moving on to step 6:
If we divide 719 by 621, we get 1 and a remainder of 98.
Record the quotient 1 as the next digit in the result. 
Result so far: 931.0
Subtracting 621 from 719 leaves us with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Step 7:
The number 621 fits into 980 1 times, leaving a remainder of 359.
Record the quotient 1 as the next digit in the result. 
Result so far: 931.1
If we subtract 621 from 980, we get 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

On to step 8:
3590 divided by 621 is 5 with a remainder of 485.
Put 5 as the next digit of the answer. 
Result so far: 931.15
Subtracting 3105 from 3590 leaves us with 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

Advancing to step 9:
If we divide 4850 by 621, we get 7 and a remainder of 503.
Write down 7 as next digit of the result. 
Result so far: 931.157
If we subtract 4347 from 4850, we get 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Moving on to step 10:
5030 divided by 621 is 8 with a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 931.1578
Subtracting 4968 from 5030 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 11:
621 goes into 620 0 times with a remainder of 620.
Record the quotient 0 as the next digit in the result. 
Result so far: 931.1578
Deduct 0 from 620 and we're left with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 12:
The number 621 fits into 6200 9 times, leaving a remainder of 611.
The number 9 becomes the next digit in our result. 
Result so far: 931.157809
Subtracting 5589 from 6200 leaves us with 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

Going ahead to step 13:
The number 621 fits into 6110 9 times, leaving a remainder of 521.
Put 9 as the next digit of the answer. 
Result so far: 931.1578099
Subtracting 5589 from 6110 leaves us with 521.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5210, and continue the process.

The final result is 931.1578099 with a remainder of 5.21e-06.