We divide 774390 by 4
The aim is to understand the frequency of 4 in 774390.

Step 1:
When dividing 7 by 4, we get 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 4 from 7 to get 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 4

On to step 2:
4 can be fit into 37 9 times, resulting in a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
The remainder is 1 after subtracting 36 from 37.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 4

Advancing to step 3:
4 can be fit into 14 3 times, resulting in a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 193.0
Deduct 12 from 14 and we're left with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 4

Let's proceed to step 4:
4 can be fit into 23 5 times, resulting in a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 1935.0
The remainder is 3 after subtracting 20 from 23.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 4

Moving on to step 5:
4 goes into 39 9 times with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 19359.0
Deduct 36 from 39 and we're left with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 4

On to step 6:
30 divided by 4 is 7 with a remainder of 2.
The next digit of our result is 7. 
Result so far: 193597.0
Subtract 28 from 30 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
4 can be fit into 20 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 193597.5
Subtract 20 from 20 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
4 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 193597.5
If we take 0 away from 0, 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.

On to step 9:
If we divide 0 by 4, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 193597.5
If we take 0 away from 0, 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.

After the division, we end up with 193597.5 and a remainder of 0.0.