21446591 ÷ 57 
We're looking to find how many times 57 goes into 21446591.

Moving on to step 1:
The number 57 fits into 2 0 times, leaving 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.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 57

Step 2:
The number 57 fits into 21 0 times, leaving a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Bring next digit (4) of the dividend behind the 21 and repeat the process: 214 / 57

Advancing to step 3:
When dividing 214 by 57, we get 3 with a remainder of 43.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 171 from 214, we get 43.
Take the next digit (4) from the dividend and append it to 43, then repeat: 434 / 57

On to step 4:
57 can be fit into 434 7 times, resulting in a remainder of 35.
Write down 7 as next digit of the result. 
Result so far: 37.0
Deduct 399 from 434 and we're left with 35.
Take the next digit (6) from the dividend and append it to 35, then repeat: 356 / 57

Let's proceed to step 5:
The number 57 fits into 356 6 times, leaving a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 376.0
If we take 342 away from 356, we end up with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 57

Step 6:
57 can be fit into 145 2 times, resulting in a remainder of 31.
Write down 2 as next digit of the result. 
Result so far: 3762.0
Subtract 114 from 145 to get 31.
Grab the next digit (9) from the dividend, add it to 31, then carry on: 319 / 57

Going ahead to step 7:
If we divide 319 by 57, we get 5 and a remainder of 34.
The number 5 becomes the next digit in our result. 
Result so far: 37625.0
If we take 285 away from 319, we end up with 34.
Include the next digit (1) from the dividend after 34, then repeat: 341 / 57

Let's proceed to step 8:
57 goes into 341 5 times with a remainder of 56.
Use 5 as the next digit of our solution. 
Result so far: 376255.0
If we take 285 away from 341, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 9:
The number 57 fits into 560 9 times, leaving a remainder of 47.
Write down 9 as next digit of the result. 
Result so far: 376255.9
Subtracting 513 from 560 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 10:
57 goes into 470 8 times with a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 376255.98
If we subtract 456 from 470, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 11:
140 divided by 57 is 2 with a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 376255.982
Deduct 114 from 140 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 12:
57 goes into 260 4 times with a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 376255.9824
Deduct 228 from 260 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 13:
The number 57 fits into 320 5 times, leaving a remainder of 35.
The next digit of our result is 5. 
Result so far: 376255.98245
Subtracting 285 from 320 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 14:
When dividing 350 by 57, we get 6 with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 376255.982456
The remainder is 8 after subtracting 342 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 15:
57 can be fit into 80 1 times, resulting in a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 376255.9824561
Deduct 57 from 80 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 16:
The number 57 fits into 230 4 times, leaving a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 376255.98245614
The remainder is 2 after subtracting 228 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Our division results in 376255.98245614 with a remaining 2e-09.