We look at the division of 17909769 by 624 
We're looking to find how many times 624 goes into 17909769.

Let's proceed to step 1:
The number 624 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 624

Moving on to step 2:
624 can be fit into 17 0 times, resulting in a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Take the next digit (9) from the dividend and append it to 17, then repeat: 179 / 624

On to step 3:
If we divide 179 by 624, we get 0 and a remainder of 179.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 179 to get 179.
Take the next digit (0) from the dividend and append it to 179, then repeat: 1790 / 624

On to step 4:
624 goes into 1790 2 times with a remainder of 542.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 1248 from 1790, we get 542.
Bring next digit (9) of the dividend behind the 542 and repeat the process: 5429 / 624

Going ahead to step 5:
If we divide 5429 by 624, we get 8 and a remainder of 437.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
Subtracting 4992 from 5429 leaves us with 437.
Append the next digit (7) from the dividend to 437 and continue with: 4377 / 624

Moving on to step 6:
When dividing 4377 by 624, we get 7 with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 287.0
Subtracting 4368 from 4377 leaves us with 9.
Append the next digit (6) from the dividend to 9 and continue with: 96 / 624

On to step 7:
624 can be fit into 96 0 times, resulting in a remainder of 96.
Record the quotient 0 as the next digit in the result. 
Result so far: 2870.0
Subtracting 0 from 96 leaves us with 96.
Append the next digit (9) from the dividend to 96 and continue with: 969 / 624

Advancing to step 8:
The number 624 fits into 969 1 times, leaving a remainder of 345.
Write down 1 as next digit of the result. 
Result so far: 28701.0
Subtract 624 from 969 to get 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Going ahead to step 9:
624 can be fit into 3450 5 times, resulting in a remainder of 330.
Write down 5 as next digit of the result. 
Result so far: 28701.5
If we subtract 3120 from 3450, we get 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Step 10:
3300 divided by 624 is 5 with a remainder of 180.
The next digit of our result is 5. 
Result so far: 28701.55
If we take 3120 away from 3300, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The final outcome is 28701.55, with a leftover of 0.18.