We're dividing 21316417 by 438 
We're looking to find how many times 438 goes into 21316417.

On to step 1:
438 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 438

Moving on to step 2:
438 can be fit into 21 0 times, resulting in a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Append the next digit (3) from the dividend to 21 and continue with: 213 / 438

Let's proceed to step 3:
The number 438 fits into 213 0 times, leaving a remainder of 213.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 213 leaves us with 213.
Append the next digit (1) from the dividend to 213 and continue with: 2131 / 438

On to step 4:
2131 divided by 438 is 4 with a remainder of 379.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 1752 from 2131 to get 379.
Append the next digit (6) from the dividend to 379 and continue with: 3796 / 438

Going ahead to step 5:
3796 divided by 438 is 8 with a remainder of 292.
Put 8 as the next digit of the answer. 
Result so far: 48.0
The remainder is 292 after subtracting 3504 from 3796.
Take the next digit (4) from the dividend and append it to 292, then repeat: 2924 / 438

Step 6:
If we divide 2924 by 438, we get 6 and a remainder of 296.
Write down 6 as next digit of the result. 
Result so far: 486.0
If we take 2628 away from 2924, we end up with 296.
Take the next digit (1) from the dividend and append it to 296, then repeat: 2961 / 438

Going ahead to step 7:
When dividing 2961 by 438, we get 6 with a remainder of 333.
Put 6 as the next digit of the answer. 
Result so far: 4866.0
Subtract 2628 from 2961 to get 333.
Fetch the next digit (7) from the dividend, attach it to 333 and continue: 3337 / 438

Advancing to step 8:
The number 438 fits into 3337 7 times, leaving a remainder of 271.
Put 7 as the next digit of the answer. 
Result so far: 48667.0
Deduct 3066 from 3337 and we're left with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Moving on to step 9:
The number 438 fits into 2710 6 times, leaving a remainder of 82.
The next digit of our result is 6. 
Result so far: 48667.6
If we subtract 2628 from 2710, we get 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 10:
When dividing 820 by 438, we get 1 with a remainder of 382.
The number 1 becomes the next digit in our result. 
Result so far: 48667.61
If we take 438 away from 820, we end up with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Let's proceed to step 11:
If we divide 3820 by 438, we get 8 and a remainder of 316.
The next digit of our result is 8. 
Result so far: 48667.618
The remainder is 316 after subtracting 3504 from 3820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Advancing to step 12:
If we divide 3160 by 438, we get 7 and a remainder of 94.
Record the quotient 7 as the next digit in the result. 
Result so far: 48667.6187
The remainder is 94 after subtracting 3066 from 3160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Moving on to step 13:
If we divide 940 by 438, we get 2 and a remainder of 64.
The next digit of our result is 2. 
Result so far: 48667.61872
If we take 876 away from 940, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 14:
If we divide 640 by 438, we get 1 and a remainder of 202.
The next digit of our result is 1. 
Result so far: 48667.618721
Deduct 438 from 640 and we're left with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Advancing to step 15:
When dividing 2020 by 438, we get 4 with a remainder of 268.
Use 4 as the next digit of our solution. 
Result so far: 48667.6187214
If we take 1752 away from 2020, we end up with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Advancing to step 16:
The number 438 fits into 2680 6 times, leaving a remainder of 52.
Put 6 as the next digit of the answer. 
Result so far: 48667.61872146
The remainder is 52 after subtracting 2628 from 2680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 48667.61872146, with a leftover of 5.2e-08.