Let's divide 21211274 by 942
We want to figure out the number of times 21211274 can be divided by 942.

Advancing to step 1:
When dividing 2 by 942, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 942

Advancing to step 2:
942 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Append the next digit (2) from the dividend to 21 and continue with: 212 / 942

Going ahead to step 3:
The number 942 fits into 212 0 times, leaving a remainder of 212.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 212, we get 212.
Include the next digit (1) from the dividend after 212, then repeat: 2121 / 942

Advancing to step 4:
When dividing 2121 by 942, we get 2 with a remainder of 237.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 1884 from 2121, we get 237.
Take the next digit (1) from the dividend and append it to 237, then repeat: 2371 / 942

Moving on to step 5:
When dividing 2371 by 942, we get 2 with a remainder of 487.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtract 1884 from 2371 to get 487.
Grab the next digit (2) from the dividend, add it to 487, then carry on: 4872 / 942

Moving on to step 6:
4872 divided by 942 is 5 with a remainder of 162.
Put 5 as the next digit of the answer. 
Result so far: 225.0
If we take 4710 away from 4872, we end up with 162.
Take the next digit (7) from the dividend and append it to 162, then repeat: 1627 / 942

Advancing to step 7:
942 goes into 1627 1 times with a remainder of 685.
Use 1 as the next digit of our solution. 
Result so far: 2251.0
If we subtract 942 from 1627, we get 685.
Take the next digit (4) from the dividend and append it to 685, then repeat: 6854 / 942

Step 8:
If we divide 6854 by 942, we get 7 and a remainder of 260.
The number 7 becomes the next digit in our result. 
Result so far: 22517.0
If we take 6594 away from 6854, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 9:
The number 942 fits into 2600 2 times, leaving a remainder of 716.
The number 2 becomes the next digit in our result. 
Result so far: 22517.2
Subtract 1884 from 2600 to get 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

On to step 10:
7160 divided by 942 is 7 with a remainder of 566.
The number 7 becomes the next digit in our result. 
Result so far: 22517.27
Subtracting 6594 from 7160 leaves us with 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

Step 11:
5660 divided by 942 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 22517.276
Subtracting 5652 from 5660 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 12:
The number 942 fits into 80 0 times, leaving a remainder of 80.
The next digit of our result is 0. 
Result so far: 22517.276
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 13:
The number 942 fits into 800 0 times, leaving a remainder of 800.
Record the quotient 0 as the next digit in the result. 
Result so far: 22517.276
Subtract 0 from 800 to get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

The final result is 22517.276 with a remainder of 0.0008.