21162171 ÷ 503 
We're looking to find how many times 503 goes into 21162171.

Step 1:
If we divide 2 by 503, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 503

Advancing to step 2:
The number 503 fits into 21 0 times, leaving a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 503

Advancing to step 3:
If we divide 211 by 503, we get 0 and a remainder of 211.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 211 after subtracting 0 from 211.
Append the next digit (6) from the dividend to 211 and continue with: 2116 / 503

Going ahead to step 4:
2116 divided by 503 is 4 with a remainder of 104.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 2012 from 2116 leaves us with 104.
Bring next digit (2) of the dividend behind the 104 and repeat the process: 1042 / 503

Moving on to step 5:
1042 divided by 503 is 2 with a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
If we subtract 1006 from 1042, we get 36.
Grab the next digit (1) from the dividend, add it to 36, then carry on: 361 / 503

Step 6:
The number 503 fits into 361 0 times, leaving a remainder of 361.
The next digit of our result is 0. 
Result so far: 420.0
Subtracting 0 from 361 leaves us with 361.
Grab the next digit (7) from the dividend, add it to 361, then carry on: 3617 / 503

Let's proceed to step 7:
The number 503 fits into 3617 7 times, leaving a remainder of 96.
Put 7 as the next digit of the answer. 
Result so far: 4207.0
If we take 3521 away from 3617, we end up with 96.
Grab the next digit (1) from the dividend, add it to 96, then carry on: 961 / 503

Going ahead to step 8:
503 can be fit into 961 1 times, resulting in a remainder of 458.
The number 1 becomes the next digit in our result. 
Result so far: 42071.0
If we subtract 503 from 961, we get 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Moving on to step 9:
503 can be fit into 4580 9 times, resulting in a remainder of 53.
The number 9 becomes the next digit in our result. 
Result so far: 42071.9
If we take 4527 away from 4580, we end up with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 10:
If we divide 530 by 503, we get 1 and a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 42071.91
Deduct 503 from 530 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 11:
When dividing 270 by 503, we get 0 with a remainder of 270.
Use 0 as the next digit of our solution. 
Result so far: 42071.91
Deduct 0 from 270 and we're left with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Advancing to step 12:
When dividing 2700 by 503, we get 5 with a remainder of 185.
Record the quotient 5 as the next digit in the result. 
Result so far: 42071.9105
The remainder is 185 after subtracting 2515 from 2700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Moving on to step 13:
If we divide 1850 by 503, we get 3 and a remainder of 341.
Write down 3 as next digit of the result. 
Result so far: 42071.91053
The remainder is 341 after subtracting 1509 from 1850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Going ahead to step 14:
503 can be fit into 3410 6 times, resulting in a remainder of 392.
The next digit of our result is 6. 
Result so far: 42071.910536
Subtracting 3018 from 3410 leaves us with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Going ahead to step 15:
The number 503 fits into 3920 7 times, leaving a remainder of 399.
Write down 7 as next digit of the result. 
Result so far: 42071.9105367
The remainder is 399 after subtracting 3521 from 3920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Advancing to step 16:
503 goes into 3990 7 times with a remainder of 469.
The next digit of our result is 7. 
Result so far: 42071.91053677
If we take 3521 away from 3990, we end up with 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

The quotient of the division is 42071.91053677, and the remainder is 4.69e-07.