Let's divide 20439612 by 438
We want to divide 20439612 by 438.

Going ahead to step 1:
The number 438 fits into 2 0 times, leaving 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 (0) from the dividend and append it to 2, then repeat: 20 / 438

Advancing to step 2:
The number 438 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Include the next digit (4) from the dividend after 20, then repeat: 204 / 438

Advancing to step 3:
438 can be fit into 204 0 times, resulting in a remainder of 204.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 204, we end up with 204.
Take the next digit (3) from the dividend and append it to 204, then repeat: 2043 / 438

On to step 4:
When dividing 2043 by 438, we get 4 with a remainder of 291.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 1752 from 2043 and we're left with 291.
Include the next digit (9) from the dividend after 291, then repeat: 2919 / 438

Going ahead to step 5:
438 goes into 2919 6 times with a remainder of 291.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
Deduct 2628 from 2919 and we're left with 291.
Append the next digit (6) from the dividend to 291 and continue with: 2916 / 438

Going ahead to step 6:
438 can be fit into 2916 6 times, resulting in a remainder of 288.
The number 6 becomes the next digit in our result. 
Result so far: 466.0
If we subtract 2628 from 2916, we get 288.
Append the next digit (1) from the dividend to 288 and continue with: 2881 / 438

Moving on to step 7:
438 can be fit into 2881 6 times, resulting in a remainder of 253.
The next digit of our result is 6. 
Result so far: 4666.0
The remainder is 253 after subtracting 2628 from 2881.
Append the next digit (2) from the dividend to 253 and continue with: 2532 / 438

Moving on to step 8:
The number 438 fits into 2532 5 times, leaving a remainder of 342.
Write down 5 as next digit of the result. 
Result so far: 46665.0
Subtracting 2190 from 2532 leaves us with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Step 9:
438 can be fit into 3420 7 times, resulting in a remainder of 354.
Put 7 as the next digit of the answer. 
Result so far: 46665.7
Deduct 3066 from 3420 and we're left with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Step 10:
The number 438 fits into 3540 8 times, leaving a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 46665.78
The remainder is 36 after subtracting 3504 from 3540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 11:
438 goes into 360 0 times with a remainder of 360.
Record the quotient 0 as the next digit in the result. 
Result so far: 46665.78
The remainder is 360 after subtracting 0 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 12:
When dividing 3600 by 438, we get 8 with a remainder of 96.
Record the quotient 8 as the next digit in the result. 
Result so far: 46665.7808
If we subtract 3504 from 3600, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Advancing to step 13:
438 can be fit into 960 2 times, resulting in a remainder of 84.
Use 2 as the next digit of our solution. 
Result so far: 46665.78082
Subtract 876 from 960 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 14:
840 divided by 438 is 1 with a remainder of 402.
The next digit of our result is 1. 
Result so far: 46665.780821
Deduct 438 from 840 and we're left with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Advancing to step 15:
If we divide 4020 by 438, we get 9 and a remainder of 78.
Put 9 as the next digit of the answer. 
Result so far: 46665.7808219
The remainder is 78 after subtracting 3942 from 4020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 16:
When dividing 780 by 438, we get 1 with a remainder of 342.
The number 1 becomes the next digit in our result. 
Result so far: 46665.78082191
Subtracting 438 from 780 leaves us with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

After the division, we end up with 46665.78082191 and a remainder of 3.42e-07.