We look at the division of 99510762 by 623 
Let's see how many times 623 fits into 99510762.

On to step 1:
When dividing 9 by 623, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 623

Let's proceed to step 2:
If we divide 99 by 623, we get 0 and a remainder of 99.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Fetch the next digit (5) from the dividend, attach it to 99 and continue: 995 / 623

Advancing to step 3:
995 divided by 623 is 1 with a remainder of 372.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 623 from 995 to get 372.
Grab the next digit (1) from the dividend, add it to 372, then carry on: 3721 / 623

On to step 4:
623 goes into 3721 5 times with a remainder of 606.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we take 3115 away from 3721, we end up with 606.
Fetch the next digit (0) from the dividend, attach it to 606 and continue: 6060 / 623

Step 5:
If we divide 6060 by 623, we get 9 and a remainder of 453.
Put 9 as the next digit of the answer. 
Result so far: 159.0
Subtract 5607 from 6060 to get 453.
Bring next digit (7) of the dividend behind the 453 and repeat the process: 4537 / 623

Moving on to step 6:
623 goes into 4537 7 times with a remainder of 176.
The number 7 becomes the next digit in our result. 
Result so far: 1597.0
If we subtract 4361 from 4537, we get 176.
Append the next digit (6) from the dividend to 176 and continue with: 1766 / 623

Moving on to step 7:
The number 623 fits into 1766 2 times, leaving a remainder of 520.
Put 2 as the next digit of the answer. 
Result so far: 15972.0
The remainder is 520 after subtracting 1246 from 1766.
Take the next digit (2) from the dividend and append it to 520, then repeat: 5202 / 623

Let's proceed to step 8:
623 can be fit into 5202 8 times, resulting in a remainder of 218.
Put 8 as the next digit of the answer. 
Result so far: 159728.0
Subtract 4984 from 5202 to get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Step 9:
The number 623 fits into 2180 3 times, leaving a remainder of 311.
The number 3 becomes the next digit in our result. 
Result so far: 159728.3
Deduct 1869 from 2180 and we're left with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Let's proceed to step 10:
The number 623 fits into 3110 4 times, leaving a remainder of 618.
Put 4 as the next digit of the answer. 
Result so far: 159728.34
Deduct 2492 from 3110 and we're left with 618.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6180, and continue the process.

Let's proceed to step 11:
623 can be fit into 6180 9 times, resulting in a remainder of 573.
Use 9 as the next digit of our solution. 
Result so far: 159728.349
Deduct 5607 from 6180 and we're left with 573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

Moving on to step 12:
When dividing 5730 by 623, we get 9 with a remainder of 123.
The next digit of our result is 9. 
Result so far: 159728.3499
If we take 5607 away from 5730, we end up with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

After the division, we end up with 159728.3499 and a remainder of 0.00123.