Let's divide 21321403 by 102
We want to figure out the number of times 21321403 can be divided by 102.

Let's proceed to step 1:
When dividing 2 by 102, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 102

Let's proceed to step 2:
The number 102 fits into 21 0 times, leaving a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 102

Going ahead to step 3:
The number 102 fits into 213 2 times, leaving a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 204 away from 213, we end up with 9.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 102

Let's proceed to step 4:
102 can be fit into 92 0 times, resulting in a remainder of 92.
Use 0 as the next digit of our solution. 
Result so far: 20.0
Subtract 0 from 92 to get 92.
Fetch the next digit (1) from the dividend, attach it to 92 and continue: 921 / 102

Step 5:
When dividing 921 by 102, we get 9 with a remainder of 3.
The next digit of our result is 9. 
Result so far: 209.0
The remainder is 3 after subtracting 918 from 921.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 102

Step 6:
102 can be fit into 34 0 times, resulting in a remainder of 34.
The number 0 becomes the next digit in our result. 
Result so far: 2090.0
If we take 0 away from 34, we end up with 34.
Append the next digit (0) from the dividend to 34 and continue with: 340 / 102

Going ahead to step 7:
102 can be fit into 340 3 times, resulting in a remainder of 34.
Write down 3 as next digit of the result. 
Result so far: 20903.0
Subtracting 306 from 340 leaves us with 34.
Bring next digit (3) of the dividend behind the 34 and repeat the process: 343 / 102

Moving on to step 8:
102 can be fit into 343 3 times, resulting in a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 209033.0
Subtracting 306 from 343 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 9:
102 goes into 370 3 times with a remainder of 64.
Put 3 as the next digit of the answer. 
Result so far: 209033.3
Deduct 306 from 370 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.

Going ahead to step 10:
When dividing 640 by 102, we get 6 with a remainder of 28.
The number 6 becomes the next digit in our result. 
Result so far: 209033.36
Subtracting 612 from 640 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 11:
If we divide 280 by 102, we get 2 and a remainder of 76.
Put 2 as the next digit of the answer. 
Result so far: 209033.362
Subtracting 204 from 280 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 12:
102 can be fit into 760 7 times, resulting in a remainder of 46.
Write down 7 as next digit of the result. 
Result so far: 209033.3627
Subtracting 714 from 760 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 13:
102 goes into 460 4 times with a remainder of 52.
Write down 4 as next digit of the result. 
Result so far: 209033.36274
The remainder is 52 after subtracting 408 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 14:
102 goes into 520 5 times with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 209033.362745
Subtracting 510 from 520 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 15:
The number 102 fits into 100 0 times, leaving a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 209033.362745
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 16:
102 can be fit into 1000 9 times, resulting in a remainder of 82.
Use 9 as the next digit of our solution. 
Result so far: 209033.36274509
Subtract 918 from 1000 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

The final result is 209033.36274509 with a remainder of 8.2e-08.