We divide 486149 by 4
The aim is to understand the frequency of 4 in 486149.

Going ahead to step 1:
If we divide 4 by 4, we get 1 and a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 4 from 4 to get 0.
Append the next digit (8) from the dividend to 0 and continue with: 8 / 4

Going ahead to step 2:
4 can be fit into 8 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we take 8 away from 8, we end up with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 4

Advancing to step 3:
6 divided by 4 is 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 121.0
Subtracting 4 from 6 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 4

On to step 4:
4 can be fit into 21 5 times, resulting in a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 1215.0
Subtract 20 from 21 to get 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 4

Going ahead to step 5:
4 can be fit into 14 3 times, resulting in a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 12153.0
The remainder is 2 after subtracting 12 from 14.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 4

Let's proceed to step 6:
4 can be fit into 29 7 times, resulting in a remainder of 1.
The next digit of our result is 7. 
Result so far: 121537.0
The remainder is 1 after subtracting 28 from 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
10 divided by 4 is 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 121537.2
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.

Step 8:
20 divided by 4 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 121537.25
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.

Going ahead to step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 121537.25
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.

On 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: 121537.25
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 outcome is 121537.25, with a leftover of 0.0.