21357110 divided by 102 
We want to divide 21357110 by 102.

Step 1:
If we divide 2 by 102, we get 0 and 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.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 102

Advancing to step 2:
When dividing 21 by 102, we get 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Include the next digit (3) from the dividend after 21, then repeat: 213 / 102

Moving on to step 3:
When dividing 213 by 102, we get 2 with a remainder of 9.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 204 away from 213, we end up with 9.
Bring next digit (5) of the dividend behind the 9 and repeat the process: 95 / 102

Moving on to step 4:
The number 102 fits into 95 0 times, leaving a remainder of 95.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
Subtracting 0 from 95 leaves us with 95.
Bring next digit (7) of the dividend behind the 95 and repeat the process: 957 / 102

Going ahead to step 5:
957 divided by 102 is 9 with a remainder of 39.
Record the quotient 9 as the next digit in the result. 
Result so far: 209.0
If we subtract 918 from 957, we get 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 102

On to step 6:
The number 102 fits into 391 3 times, leaving a remainder of 85.
Use 3 as the next digit of our solution. 
Result so far: 2093.0
Subtract 306 from 391 to get 85.
Grab the next digit (1) from the dividend, add it to 85, then carry on: 851 / 102

Step 7:
When dividing 851 by 102, we get 8 with a remainder of 35.
Record the quotient 8 as the next digit in the result. 
Result so far: 20938.0
If we take 816 away from 851, we end up with 35.
Append the next digit (0) from the dividend to 35 and continue with: 350 / 102

Going ahead to step 8:
102 can be fit into 350 3 times, resulting in a remainder of 44.
Write down 3 as next digit of the result. 
Result so far: 209383.0
If we take 306 away from 350, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 9:
440 divided by 102 is 4 with a remainder of 32.
The next digit of our result is 4. 
Result so far: 209383.4
Subtracting 408 from 440 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 10:
320 divided by 102 is 3 with a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 209383.43
Subtract 306 from 320 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 11:
140 divided by 102 is 1 with a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 209383.431
If we take 102 away from 140, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 12:
102 can be fit into 380 3 times, resulting in a remainder of 74.
The number 3 becomes the next digit in our result. 
Result so far: 209383.4313
Subtract 306 from 380 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 13:
When dividing 740 by 102, we get 7 with a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 209383.43137
If we subtract 714 from 740, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 14:
102 goes into 260 2 times with a remainder of 56.
Use 2 as the next digit of our solution. 
Result so far: 209383.431372
Subtract 204 from 260 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 15:
If we divide 560 by 102, we get 5 and a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 209383.4313725
Subtracting 510 from 560 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 16:
When dividing 500 by 102, we get 4 with a remainder of 92.
Record the quotient 4 as the next digit in the result. 
Result so far: 209383.43137254
If we subtract 408 from 500, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Our division results in 209383.43137254 with a remaining 9.2e-08.