We look at the division of 6433994 by 624 
Let's see how many times 624 fits into 6433994.

Step 1:
The number 624 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 624

Advancing to step 2:
If we divide 64 by 624, we get 0 and a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Append the next digit (3) from the dividend to 64 and continue with: 643 / 624

Advancing to step 3:
The number 624 fits into 643 1 times, leaving a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 624 away from 643, we end up with 19.
Grab the next digit (3) from the dividend, add it to 19, then carry on: 193 / 624

Let's proceed to step 4:
When dividing 193 by 624, we get 0 with a remainder of 193.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we take 0 away from 193, we end up with 193.
Append the next digit (9) from the dividend to 193 and continue with: 1939 / 624

Going ahead to step 5:
If we divide 1939 by 624, we get 3 and a remainder of 67.
Record the quotient 3 as the next digit in the result. 
Result so far: 103.0
If we take 1872 away from 1939, we end up with 67.
Append the next digit (9) from the dividend to 67 and continue with: 679 / 624

Let's proceed to step 6:
When dividing 679 by 624, we get 1 with a remainder of 55.
Put 1 as the next digit of the answer. 
Result so far: 1031.0
Subtract 624 from 679 to get 55.
Grab the next digit (4) from the dividend, add it to 55, then carry on: 554 / 624

On to step 7:
The number 624 fits into 554 0 times, leaving a remainder of 554.
Use 0 as the next digit of our solution. 
Result so far: 10310.0
If we take 0 away from 554, we end up with 554.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

Moving on to step 8:
5540 divided by 624 is 8 with a remainder of 548.
Use 8 as the next digit of our solution. 
Result so far: 10310.8
If we take 4992 away from 5540, we end up with 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Advancing to step 9:
624 goes into 5480 8 times with a remainder of 488.
Write down 8 as next digit of the result. 
Result so far: 10310.88
Subtract 4992 from 5480 to get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

After the division, we end up with 10310.88 and a remainder of 0.488.