21402897 ÷ 491 
We're looking to find how many times 491 goes into 21402897.

On to step 1:
491 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 491

Advancing to step 2:
When dividing 21 by 491, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Fetch the next digit (4) from the dividend, attach it to 21 and continue: 214 / 491

Moving on to step 3:
491 goes into 214 0 times with a remainder of 214.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 214, we get 214.
Take the next digit (0) from the dividend and append it to 214, then repeat: 2140 / 491

Step 4:
491 goes into 2140 4 times with a remainder of 176.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 1964 from 2140, we get 176.
Include the next digit (2) from the dividend after 176, then repeat: 1762 / 491

Let's proceed to step 5:
If we divide 1762 by 491, we get 3 and a remainder of 289.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
If we take 1473 away from 1762, we end up with 289.
Append the next digit (8) from the dividend to 289 and continue with: 2898 / 491

Advancing to step 6:
If we divide 2898 by 491, we get 5 and a remainder of 443.
Put 5 as the next digit of the answer. 
Result so far: 435.0
If we subtract 2455 from 2898, we get 443.
Grab the next digit (9) from the dividend, add it to 443, then carry on: 4439 / 491

Let's proceed to step 7:
The number 491 fits into 4439 9 times, leaving a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 4359.0
If we subtract 4419 from 4439, we get 20.
Append the next digit (7) from the dividend to 20 and continue with: 207 / 491

Advancing to step 8:
491 goes into 207 0 times with a remainder of 207.
Put 0 as the next digit of the answer. 
Result so far: 43590.0
Subtracting 0 from 207 leaves us with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Going ahead to step 9:
491 can be fit into 2070 4 times, resulting in a remainder of 106.
The next digit of our result is 4. 
Result so far: 43590.4
Subtract 1964 from 2070 to get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Step 10:
If we divide 1060 by 491, we get 2 and a remainder of 78.
Use 2 as the next digit of our solution. 
Result so far: 43590.42
Subtracting 982 from 1060 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 11:
When dividing 780 by 491, we get 1 with a remainder of 289.
The next digit of our result is 1. 
Result so far: 43590.421
Subtracting 491 from 780 leaves us with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Advancing to step 12:
The number 491 fits into 2890 5 times, leaving a remainder of 435.
Write down 5 as next digit of the result. 
Result so far: 43590.4215
Subtract 2455 from 2890 to get 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

On to step 13:
The number 491 fits into 4350 8 times, leaving a remainder of 422.
The number 8 becomes the next digit in our result. 
Result so far: 43590.42158
Subtract 3928 from 4350 to get 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

Moving on to step 14:
491 goes into 4220 8 times with a remainder of 292.
Write down 8 as next digit of the result. 
Result so far: 43590.421588
Deduct 3928 from 4220 and we're left with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

The final result is 43590.421588 with a remainder of 2.92e-05.