Let's divide 90180263 by 438
The aim is to understand the frequency of 438 in 90180263.

Moving on to step 1:
438 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 438

Step 2:
438 goes into 90 0 times with a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Bring next digit (1) of the dividend behind the 90 and repeat the process: 901 / 438

Advancing to step 3:
The number 438 fits into 901 2 times, leaving a remainder of 25.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 876 from 901 leaves us with 25.
Take the next digit (8) from the dividend and append it to 25, then repeat: 258 / 438

Let's proceed to step 4:
When dividing 258 by 438, we get 0 with a remainder of 258.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
The remainder is 258 after subtracting 0 from 258.
Take the next digit (0) from the dividend and append it to 258, then repeat: 2580 / 438

On to step 5:
2580 divided by 438 is 5 with a remainder of 390.
Record the quotient 5 as the next digit in the result. 
Result so far: 205.0
Deduct 2190 from 2580 and we're left with 390.
Bring next digit (2) of the dividend behind the 390 and repeat the process: 3902 / 438

Advancing to step 6:
438 can be fit into 3902 8 times, resulting in a remainder of 398.
Use 8 as the next digit of our solution. 
Result so far: 2058.0
Subtract 3504 from 3902 to get 398.
Bring next digit (6) of the dividend behind the 398 and repeat the process: 3986 / 438

Advancing to step 7:
438 goes into 3986 9 times with a remainder of 44.
Use 9 as the next digit of our solution. 
Result so far: 20589.0
Deduct 3942 from 3986 and we're left with 44.
Bring next digit (3) of the dividend behind the 44 and repeat the process: 443 / 438

Going ahead to step 8:
438 can be fit into 443 1 times, resulting in a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 205891.0
Deduct 438 from 443 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 9:
438 can be fit into 50 0 times, resulting in a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 205891.0
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 10:
438 can be fit into 500 1 times, resulting in a remainder of 62.
The number 1 becomes the next digit in our result. 
Result so far: 205891.01
Subtracting 438 from 500 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 11:
If we divide 620 by 438, we get 1 and a remainder of 182.
Write down 1 as next digit of the result. 
Result so far: 205891.011
If we take 438 away from 620, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

After the division, we end up with 205891.011 and a remainder of 0.0182.