910589 ÷ 4 
The aim is to understand the frequency of 4 in 910589.

Going ahead to step 1:
If we divide 9 by 4, we get 2 and a remainder of 1.
The number 2 becomes the next digit in our result. 
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:
When dividing 11 by 4, we get 2 with a remainder of 3.
The next digit of our result is 2. 
Result so far: 22.0
Subtract 8 from 11 to get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 4

Going ahead to step 3:
30 divided by 4 is 7 with a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 227.0
If we subtract 28 from 30, we get 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 4

Advancing to step 4:
The number 4 fits into 25 6 times, leaving a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 2276.0
Subtracting 24 from 25 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 4

Advancing 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: 22764.0
If we take 16 away from 18, we end up with 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 4

On to step 6:
29 divided by 4 is 7 with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 227647.0
Subtract 28 from 29 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
10 divided by 4 is 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 227647.2
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.

Advancing to step 8:
When dividing 20 by 4, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 227647.25
Subtracting 20 from 20 leaves us 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 9:
If we divide 0 by 4, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 227647.25
Subtract 0 from 0 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 10:
The number 4 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 227647.25
If we subtract 0 from 0, we 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.

The final outcome is 227647.25, with a leftover of 0.0.