21894968 ÷ 458 
We want to figure out the number of times 21894968 can be divided by 458.

Advancing to step 1:
When dividing 2 by 458, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 458

Let's proceed to step 2:
458 goes into 21 0 times with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 458

Step 3:
218 divided by 458 is 0 with a remainder of 218.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 218, we end up with 218.
Include the next digit (9) from the dividend after 218, then repeat: 2189 / 458

Let's proceed to step 4:
458 can be fit into 2189 4 times, resulting in a remainder of 357.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 1832 from 2189 leaves us with 357.
Fetch the next digit (4) from the dividend, attach it to 357 and continue: 3574 / 458

Step 5:
When dividing 3574 by 458, we get 7 with a remainder of 368.
Write down 7 as next digit of the result. 
Result so far: 47.0
Deduct 3206 from 3574 and we're left with 368.
Include the next digit (9) from the dividend after 368, then repeat: 3689 / 458

Advancing to step 6:
3689 divided by 458 is 8 with a remainder of 25.
The number 8 becomes the next digit in our result. 
Result so far: 478.0
The remainder is 25 after subtracting 3664 from 3689.
Grab the next digit (6) from the dividend, add it to 25, then carry on: 256 / 458

Going ahead to step 7:
458 can be fit into 256 0 times, resulting in a remainder of 256.
Use 0 as the next digit of our solution. 
Result so far: 4780.0
Deduct 0 from 256 and we're left with 256.
Bring next digit (8) of the dividend behind the 256 and repeat the process: 2568 / 458

Going ahead to step 8:
The number 458 fits into 2568 5 times, leaving a remainder of 278.
Put 5 as the next digit of the answer. 
Result so far: 47805.0
Deduct 2290 from 2568 and we're left with 278.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2780, and continue the process.

On to step 9:
When dividing 2780 by 458, we get 6 with a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 47805.6
Subtract 2748 from 2780 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 10:
458 goes into 320 0 times with a remainder of 320.
The number 0 becomes the next digit in our result. 
Result so far: 47805.6
Subtract 0 from 320 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 11:
If we divide 3200 by 458, we get 6 and a remainder of 452.
The next digit of our result is 6. 
Result so far: 47805.606
If we subtract 2748 from 3200, we get 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Advancing to step 12:
When dividing 4520 by 458, we get 9 with a remainder of 398.
Use 9 as the next digit of our solution. 
Result so far: 47805.6069
Subtract 4122 from 4520 to get 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Step 13:
458 goes into 3980 8 times with a remainder of 316.
The next digit of our result is 8. 
Result so far: 47805.60698
Subtracting 3664 from 3980 leaves us with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Going ahead to step 14:
If we divide 3160 by 458, we get 6 and a remainder of 412.
The next digit of our result is 6. 
Result so far: 47805.606986
The remainder is 412 after subtracting 2748 from 3160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

On to step 15:
The number 458 fits into 4120 8 times, leaving a remainder of 456.
The number 8 becomes the next digit in our result. 
Result so far: 47805.6069868
Deduct 3664 from 4120 and we're left with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Advancing to step 16:
The number 458 fits into 4560 9 times, leaving a remainder of 438.
The next digit of our result is 9. 
Result so far: 47805.60698689
If we take 4122 away from 4560, we end up with 438.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

The final result is 47805.60698689 with a remainder of 4.38e-07.