Let's divide 21142953 by 522
We want to figure out the number of times 21142953 can be divided by 522.

On to step 1:
522 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 522

Going ahead to step 2:
The number 522 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (1) of the dividend behind the 21 and repeat the process: 211 / 522

Step 3:
If we divide 211 by 522, we get 0 and a remainder of 211.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 211 leaves us with 211.
Bring next digit (4) of the dividend behind the 211 and repeat the process: 2114 / 522

Moving on to step 4:
If we divide 2114 by 522, we get 4 and a remainder of 26.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 2088 from 2114 leaves us with 26.
Grab the next digit (2) from the dividend, add it to 26, then carry on: 262 / 522

On to step 5:
The number 522 fits into 262 0 times, leaving a remainder of 262.
Write down 0 as next digit of the result. 
Result so far: 40.0
Subtract 0 from 262 to get 262.
Bring next digit (9) of the dividend behind the 262 and repeat the process: 2629 / 522

Let's proceed to step 6:
2629 divided by 522 is 5 with a remainder of 19.
Record the quotient 5 as the next digit in the result. 
Result so far: 405.0
If we subtract 2610 from 2629, we get 19.
Fetch the next digit (5) from the dividend, attach it to 19 and continue: 195 / 522

Going ahead to step 7:
The number 522 fits into 195 0 times, leaving a remainder of 195.
Put 0 as the next digit of the answer. 
Result so far: 4050.0
Deduct 0 from 195 and we're left with 195.
Grab the next digit (3) from the dividend, add it to 195, then carry on: 1953 / 522

Advancing to step 8:
The number 522 fits into 1953 3 times, leaving a remainder of 387.
Write down 3 as next digit of the result. 
Result so far: 40503.0
If we subtract 1566 from 1953, we get 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Going ahead to step 9:
522 goes into 3870 7 times with a remainder of 216.
Put 7 as the next digit of the answer. 
Result so far: 40503.7
Subtract 3654 from 3870 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Moving on to step 10:
The number 522 fits into 2160 4 times, leaving a remainder of 72.
The number 4 becomes the next digit in our result. 
Result so far: 40503.74
The remainder is 72 after subtracting 2088 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 11:
If we divide 720 by 522, we get 1 and a remainder of 198.
Put 1 as the next digit of the answer. 
Result so far: 40503.741
If we take 522 away from 720, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Going ahead to step 12:
If we divide 1980 by 522, we get 3 and a remainder of 414.
The number 3 becomes the next digit in our result. 
Result so far: 40503.7413
Deduct 1566 from 1980 and we're left with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Going ahead to step 13:
4140 divided by 522 is 7 with a remainder of 486.
Put 7 as the next digit of the answer. 
Result so far: 40503.74137
If we subtract 3654 from 4140, we get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Step 14:
If we divide 4860 by 522, we get 9 and a remainder of 162.
The number 9 becomes the next digit in our result. 
Result so far: 40503.741379
Subtract 4698 from 4860 to get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Advancing to step 15:
When dividing 1620 by 522, we get 3 with a remainder of 54.
Use 3 as the next digit of our solution. 
Result so far: 40503.7413793
If we take 1566 away from 1620, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 16:
The number 522 fits into 540 1 times, leaving a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 40503.74137931
Subtracting 522 from 540 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Our division results in 40503.74137931 with a remaining 1.8e-08.