Let's divide 913970 by 4
The aim is to understand the frequency of 4 in 913970.

On to step 1:
4 can be fit into 9 2 times, resulting in a remainder of 1.
The next digit of our result is 2. 
Result so far: 2.0
If we take 8 away from 9, we end up with 1.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 4

Advancing to step 2:
The number 4 fits into 11 2 times, leaving a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtracting 8 from 11 leaves us with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 4

Advancing to step 3:
When dividing 33 by 4, we get 8 with a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 228.0
Deduct 32 from 33 and we're left with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 4

Let's proceed to step 4:
19 divided by 4 is 4 with a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 2284.0
Subtract 16 from 19 to get 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 4

Let's proceed to step 5:
4 goes into 37 9 times with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 22849.0
Subtract 36 from 37 to get 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 4

Let's proceed to step 6:
If we divide 10 by 4, we get 2 and a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 228492.0
Subtract 8 from 10 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.

Moving on to step 7:
4 can be fit into 20 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 228492.5
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 8:
0 divided by 4 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 228492.5
Subtracting 0 from 0 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:
0 divided by 4 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 228492.5
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.

The final result is 228492.5 with a remainder of 0.0.