We're dividing 21031534 by 624 
Let's see how many times 624 fits into 21031534.

On to step 1:
624 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 624

Advancing to step 2:
When dividing 21 by 624, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 624

Moving on to step 3:
210 divided by 624 is 0 with a remainder of 210.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 210, we get 210.
Include the next digit (3) from the dividend after 210, then repeat: 2103 / 624

Let's proceed to step 4:
2103 divided by 624 is 3 with a remainder of 231.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 231 after subtracting 1872 from 2103.
Grab the next digit (1) from the dividend, add it to 231, then carry on: 2311 / 624

Advancing to step 5:
The number 624 fits into 2311 3 times, leaving a remainder of 439.
Record the quotient 3 as the next digit in the result. 
Result so far: 33.0
Subtract 1872 from 2311 to get 439.
Bring next digit (5) of the dividend behind the 439 and repeat the process: 4395 / 624

On to step 6:
If we divide 4395 by 624, we get 7 and a remainder of 27.
The next digit of our result is 7. 
Result so far: 337.0
If we take 4368 away from 4395, we end up with 27.
Bring next digit (3) of the dividend behind the 27 and repeat the process: 273 / 624

Advancing to step 7:
273 divided by 624 is 0 with a remainder of 273.
Write down 0 as next digit of the result. 
Result so far: 3370.0
Subtracting 0 from 273 leaves us with 273.
Grab the next digit (4) from the dividend, add it to 273, then carry on: 2734 / 624

Step 8:
624 can be fit into 2734 4 times, resulting in a remainder of 238.
Put 4 as the next digit of the answer. 
Result so far: 33704.0
The remainder is 238 after subtracting 2496 from 2734.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Going ahead to step 9:
The number 624 fits into 2380 3 times, leaving a remainder of 508.
Record the quotient 3 as the next digit in the result. 
Result so far: 33704.3
If we subtract 1872 from 2380, we get 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Moving on to step 10:
624 goes into 5080 8 times with a remainder of 88.
The number 8 becomes the next digit in our result. 
Result so far: 33704.38
The remainder is 88 after subtracting 4992 from 5080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Step 11:
If we divide 880 by 624, we get 1 and a remainder of 256.
The number 1 becomes the next digit in our result. 
Result so far: 33704.381
If we subtract 624 from 880, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Step 12:
624 goes into 2560 4 times with a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 33704.3814
Deduct 2496 from 2560 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 13:
The number 624 fits into 640 1 times, leaving a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 33704.38141
The remainder is 16 after subtracting 624 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
624 goes into 160 0 times with a remainder of 160.
Record the quotient 0 as the next digit in the result. 
Result so far: 33704.38141
Deduct 0 from 160 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 15:
624 can be fit into 1600 2 times, resulting in a remainder of 352.
Record the quotient 2 as the next digit in the result. 
Result so far: 33704.3814102
Subtract 1248 from 1600 to get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 16:
If we divide 3520 by 624, we get 5 and a remainder of 400.
Use 5 as the next digit of our solution. 
Result so far: 33704.38141025
If we subtract 3120 from 3520, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Our division results in 33704.38141025 with a remaining 4e-07.