21392833 divided by 212 
We want to figure out the number of times 21392833 can be divided by 212.

On to step 1:
212 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 212

Let's proceed to step 2:
212 goes into 21 0 times with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 212

Going ahead to step 3:
213 divided by 212 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 212 from 213 to get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 212

Step 4:
The number 212 fits into 19 0 times, leaving a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 19 after subtracting 0 from 19.
Include the next digit (2) from the dividend after 19, then repeat: 192 / 212

Going ahead to step 5:
When dividing 192 by 212, we get 0 with a remainder of 192.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
Subtracting 0 from 192 leaves us with 192.
Fetch the next digit (8) from the dividend, attach it to 192 and continue: 1928 / 212

On to step 6:
1928 divided by 212 is 9 with a remainder of 20.
The number 9 becomes the next digit in our result. 
Result so far: 1009.0
The remainder is 20 after subtracting 1908 from 1928.
Bring next digit (3) of the dividend behind the 20 and repeat the process: 203 / 212

Let's proceed to step 7:
212 can be fit into 203 0 times, resulting in a remainder of 203.
The next digit of our result is 0. 
Result so far: 10090.0
Subtracting 0 from 203 leaves us with 203.
Bring next digit (3) of the dividend behind the 203 and repeat the process: 2033 / 212

Advancing to step 8:
The number 212 fits into 2033 9 times, leaving a remainder of 125.
Put 9 as the next digit of the answer. 
Result so far: 100909.0
If we take 1908 away from 2033, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Step 9:
When dividing 1250 by 212, we get 5 with a remainder of 190.
Put 5 as the next digit of the answer. 
Result so far: 100909.5
If we take 1060 away from 1250, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

On to step 10:
If we divide 1900 by 212, we get 8 and a remainder of 204.
The number 8 becomes the next digit in our result. 
Result so far: 100909.58
Subtract 1696 from 1900 to get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

On to step 11:
212 goes into 2040 9 times with a remainder of 132.
Use 9 as the next digit of our solution. 
Result so far: 100909.589
Subtract 1908 from 2040 to get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Advancing to step 12:
If we divide 1320 by 212, we get 6 and a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 100909.5896
Subtract 1272 from 1320 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 13:
The number 212 fits into 480 2 times, leaving a remainder of 56.
Write down 2 as next digit of the result. 
Result so far: 100909.58962
If we take 424 away from 480, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 14:
560 divided by 212 is 2 with a remainder of 136.
Use 2 as the next digit of our solution. 
Result so far: 100909.589622
The remainder is 136 after subtracting 424 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

After the division, we end up with 100909.589622 and a remainder of 1.36e-05.