We divide 90159790 by 438
We want to divide 90159790 by 438.

Advancing to step 1:
If we divide 9 by 438, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 438

Let's proceed to step 2:
If we divide 90 by 438, we get 0 and a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Fetch the next digit (1) from the dividend, attach it to 90 and continue: 901 / 438

On to step 3:
The number 438 fits into 901 2 times, leaving a remainder of 25.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 876 from 901 and we're left with 25.
Bring next digit (5) of the dividend behind the 25 and repeat the process: 255 / 438

Step 4:
When dividing 255 by 438, we get 0 with a remainder of 255.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
If we subtract 0 from 255, we get 255.
Fetch the next digit (9) from the dividend, attach it to 255 and continue: 2559 / 438

Step 5:
If we divide 2559 by 438, we get 5 and a remainder of 369.
The number 5 becomes the next digit in our result. 
Result so far: 205.0
Deduct 2190 from 2559 and we're left with 369.
Take the next digit (7) from the dividend and append it to 369, then repeat: 3697 / 438

Step 6:
When dividing 3697 by 438, we get 8 with a remainder of 193.
The number 8 becomes the next digit in our result. 
Result so far: 2058.0
Subtract 3504 from 3697 to get 193.
Take the next digit (9) from the dividend and append it to 193, then repeat: 1939 / 438

Let's proceed to step 7:
1939 divided by 438 is 4 with a remainder of 187.
Write down 4 as next digit of the result. 
Result so far: 20584.0
If we take 1752 away from 1939, we end up with 187.
Include the next digit (0) from the dividend after 187, then repeat: 1870 / 438

Moving on to step 8:
When dividing 1870 by 438, we get 4 with a remainder of 118.
The next digit of our result is 4. 
Result so far: 205844.0
If we take 1752 away from 1870, we end up with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Going ahead to step 9:
If we divide 1180 by 438, we get 2 and a remainder of 304.
The next digit of our result is 2. 
Result so far: 205844.2
The remainder is 304 after subtracting 876 from 1180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

On to step 10:
If we divide 3040 by 438, we get 6 and a remainder of 412.
The next digit of our result is 6. 
Result so far: 205844.26
If we take 2628 away from 3040, we end up with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Advancing to step 11:
When dividing 4120 by 438, we get 9 with a remainder of 178.
Record the quotient 9 as the next digit in the result. 
Result so far: 205844.269
If we subtract 3942 from 4120, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Let's proceed to step 12:
438 goes into 1780 4 times with a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 205844.2694
Subtracting 1752 from 1780 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 13:
When dividing 280 by 438, we get 0 with a remainder of 280.
The next digit of our result is 0. 
Result so far: 205844.2694
If we take 0 away from 280, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 14:
When dividing 2800 by 438, we get 6 with a remainder of 172.
Put 6 as the next digit of the answer. 
Result so far: 205844.269406
If we subtract 2628 from 2800, we get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

On to step 15:
438 goes into 1720 3 times with a remainder of 406.
Record the quotient 3 as the next digit in the result. 
Result so far: 205844.2694063
Subtracting 1314 from 1720 leaves us with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

On to step 16:
438 goes into 4060 9 times with a remainder of 118.
Put 9 as the next digit of the answer. 
Result so far: 205844.26940639
The remainder is 118 after subtracting 3942 from 4060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

The quotient of the division is 205844.26940639, and the remainder is 1.18e-07.