We look at the division of 545678 by 4 
The aim is to understand the frequency of 4 in 545678.

On to step 1:
The number 4 fits into 5 1 times, leaving a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
If we take 4 away from 5, we end up with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 4

Advancing to step 2:
The number 4 fits into 14 3 times, leaving a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtract 12 from 14 to get 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 4

Let's proceed to step 3:
25 divided by 4 is 6 with a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 136.0
Subtract 24 from 25 to get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 4

Advancing to step 4:
When dividing 16 by 4, we get 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 1364.0
Subtract 16 from 16 to get 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 4

Moving on to step 5:
4 can be fit into 7 1 times, resulting in a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 13641.0
If we subtract 4 from 7, we get 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 4

Advancing to step 6:
38 divided by 4 is 9 with a remainder of 2.
The next digit of our result is 9. 
Result so far: 136419.0
Deduct 36 from 38 and we're left 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.

On to step 7:
20 divided by 4 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 136419.5
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.

Going ahead to step 8:
0 divided by 4 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 136419.5
The remainder is 0 after subtracting 0 from 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:
0 divided by 4 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 136419.5
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 136419.5 and a remainder of 0.0.