We divide 912181 by 4
The aim is to understand the frequency of 4 in 912181.

Going ahead to step 1:
4 can be fit into 9 2 times, resulting in a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 8 from 9, we get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 4

Moving on to step 2:
The number 4 fits into 11 2 times, leaving a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
If we subtract 8 from 11, we get 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 4

Let's proceed to step 3:
When dividing 32 by 4, we get 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 228.0
Deduct 32 from 32 and we're left with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 4

Let's proceed to step 4:
1 divided by 4 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 2280.0
If we take 0 away from 1, we end up with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 4

Going ahead to step 5:
4 goes into 18 4 times with a remainder of 2.
The next digit of our result is 4. 
Result so far: 22804.0
Subtracting 16 from 18 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 4

Going ahead to step 6:
21 divided by 4 is 5 with a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 228045.0
If we take 20 away from 21, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
4 can be fit into 10 2 times, resulting in a remainder of 2.
The next digit of our result is 2. 
Result so far: 228045.2
Subtracting 8 from 10 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
4 can be fit into 20 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 228045.25
If we take 20 away from 20, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
The number 4 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 228045.25
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 228045.25
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 228045.25 with a remainder of 0.0.