We're dividing 645418 by 48 
The aim is to understand the frequency of 48 in 645418.

Let's proceed to step 1:
When dividing 6 by 48, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 48

Going ahead to step 2:
48 can be fit into 64 1 times, resulting in a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 48 from 64 and we're left with 16.
Include the next digit (5) from the dividend after 16, then repeat: 165 / 48

Advancing to step 3:
165 divided by 48 is 3 with a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 144 from 165, we get 21.
Bring next digit (4) of the dividend behind the 21 and repeat the process: 214 / 48

Going ahead to step 4:
If we divide 214 by 48, we get 4 and a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 134.0
Subtract 192 from 214 to get 22.
Include the next digit (1) from the dividend after 22, then repeat: 221 / 48

Going ahead to step 5:
If we divide 221 by 48, we get 4 and a remainder of 29.
Write down 4 as next digit of the result. 
Result so far: 1344.0
If we take 192 away from 221, we end up with 29.
Take the next digit (8) from the dividend and append it to 29, then repeat: 298 / 48

Going ahead to step 6:
48 can be fit into 298 6 times, resulting in a remainder of 10.
The number 6 becomes the next digit in our result. 
Result so far: 13446.0
The remainder is 10 after subtracting 288 from 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
The number 48 fits into 100 2 times, leaving a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 13446.2
Deduct 96 from 100 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 8:
When dividing 40 by 48, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 13446.2
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 9:
48 can be fit into 400 8 times, resulting in a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 13446.208
If we take 384 away from 400, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
The number 48 fits into 160 3 times, leaving a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 13446.2083
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
160 divided by 48 is 3 with a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 13446.20833
Deduct 144 from 160 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 13446.20833 with a remaining 1.6e-05.