21003794 ÷ 251 
We're looking to find how many times 251 goes into 21003794.

Let's proceed to step 1:
When dividing 2 by 251, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 251

Going ahead to step 2:
When dividing 21 by 251, we get 0 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.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 251

Advancing to step 3:
If we divide 210 by 251, we get 0 and a remainder of 210.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 210 after subtracting 0 from 210.
Take the next digit (0) from the dividend and append it to 210, then repeat: 2100 / 251

Let's proceed to step 4:
The number 251 fits into 2100 8 times, leaving a remainder of 92.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 2008 from 2100 to get 92.
Append the next digit (3) from the dividend to 92 and continue with: 923 / 251

On to step 5:
251 can be fit into 923 3 times, resulting in a remainder of 170.
Record the quotient 3 as the next digit in the result. 
Result so far: 83.0
The remainder is 170 after subtracting 753 from 923.
Fetch the next digit (7) from the dividend, attach it to 170 and continue: 1707 / 251

Going ahead to step 6:
When dividing 1707 by 251, we get 6 with a remainder of 201.
The number 6 becomes the next digit in our result. 
Result so far: 836.0
If we take 1506 away from 1707, we end up with 201.
Bring next digit (9) of the dividend behind the 201 and repeat the process: 2019 / 251

Step 7:
The number 251 fits into 2019 8 times, leaving a remainder of 11.
Use 8 as the next digit of our solution. 
Result so far: 8368.0
If we subtract 2008 from 2019, we get 11.
Bring next digit (4) of the dividend behind the 11 and repeat the process: 114 / 251

Step 8:
The number 251 fits into 114 0 times, leaving a remainder of 114.
The next digit of our result is 0. 
Result so far: 83680.0
Subtracting 0 from 114 leaves us with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Let's proceed to step 9:
The number 251 fits into 1140 4 times, leaving a remainder of 136.
Record the quotient 4 as the next digit in the result. 
Result so far: 83680.4
If we take 1004 away from 1140, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Advancing to step 10:
When dividing 1360 by 251, we get 5 with a remainder of 105.
Write down 5 as next digit of the result. 
Result so far: 83680.45
Subtract 1255 from 1360 to get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Advancing to step 11:
When dividing 1050 by 251, we get 4 with a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 83680.454
Subtracting 1004 from 1050 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 12:
The number 251 fits into 460 1 times, leaving a remainder of 209.
Use 1 as the next digit of our solution. 
Result so far: 83680.4541
The remainder is 209 after subtracting 251 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Step 13:
2090 divided by 251 is 8 with a remainder of 82.
The next digit of our result is 8. 
Result so far: 83680.45418
Deduct 2008 from 2090 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 14:
When dividing 820 by 251, we get 3 with a remainder of 67.
The number 3 becomes the next digit in our result. 
Result so far: 83680.454183
Deduct 753 from 820 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Let's proceed to step 15:
251 goes into 670 2 times with a remainder of 168.
Put 2 as the next digit of the answer. 
Result so far: 83680.4541832
If we take 502 away from 670, we end up with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Moving on to step 16:
If we divide 1680 by 251, we get 6 and a remainder of 174.
Write down 6 as next digit of the result. 
Result so far: 83680.45418326
Subtract 1506 from 1680 to get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

After the division, we end up with 83680.45418326 and a remainder of 1.74e-07.