We're dividing 169420 by 4 
The aim is to understand the frequency of 4 in 169420.

Step 1:
If we divide 1 by 4, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 4

On to step 2:
16 divided by 4 is 4 with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 16 away from 16, we end up with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 4

Going ahead to step 3:
4 can be fit into 9 2 times, resulting in a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 42.0
Deduct 8 from 9 and we're left with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 4

Going ahead to step 4:
When dividing 14 by 4, we get 3 with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 423.0
Deduct 12 from 14 and we're left with 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 4

Let's proceed to step 5:
If we divide 22 by 4, we get 5 and a remainder of 2.
Record the quotient 5 as the next digit in the result. 
Result so far: 4235.0
Deduct 20 from 22 and we're left with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 4

Going ahead to step 6:
20 divided by 4 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 42355.0
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.

Advancing to step 7:
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: 42355.0
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.

Advancing to step 8:
0 divided by 4 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 42355.0
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.

The final outcome is 42355.0, with a leftover of 0.0.