145337 divided by 4 
The aim is to understand the frequency of 4 in 145337.

Step 1:
When dividing 1 by 4, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 4

Let's proceed to step 2:
If we divide 14 by 4, we get 3 and a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 12 from 14, we get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 4

Step 3:
4 can be fit into 25 6 times, resulting in a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
Deduct 24 from 25 and we're left with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 4

Advancing to step 4:
If we divide 13 by 4, we get 3 and a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 363.0
Deduct 12 from 13 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 4

Let's proceed to step 5:
When dividing 13 by 4, we get 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 3633.0
Deduct 12 from 13 and we're left with 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 4

Going ahead to step 6:
The number 4 fits into 17 4 times, leaving a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 36334.0
If we take 16 away from 17, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
4 goes into 10 2 times with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 36334.2
If we take 8 away from 10, we end up 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.

Moving on to step 8:
4 goes into 20 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 36334.25
If we subtract 20 from 20, 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.

Moving on to step 9:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 36334.25
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.

Let's proceed to step 10:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 36334.25
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.

The final result is 36334.25 with a remainder of 0.0.