643005 ÷ 48 
The aim is to understand the frequency of 48 in 643005.

Going ahead to step 1:
The number 48 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 48

Let's proceed to step 2:
When dividing 64 by 48, we get 1 with a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 16 after subtracting 48 from 64.
Grab the next digit (3) from the dividend, add it to 16, then carry on: 163 / 48

Moving on to step 3:
When dividing 163 by 48, we get 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
The remainder is 19 after subtracting 144 from 163.
Grab the next digit (0) from the dividend, add it to 19, then carry on: 190 / 48

On to step 4:
If we divide 190 by 48, we get 3 and a remainder of 46.
Record the quotient 3 as the next digit in the result. 
Result so far: 133.0
Subtracting 144 from 190 leaves us with 46.
Bring next digit (0) of the dividend behind the 46 and repeat the process: 460 / 48

On to step 5:
48 goes into 460 9 times with a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 1339.0
Deduct 432 from 460 and we're left with 28.
Bring next digit (5) of the dividend behind the 28 and repeat the process: 285 / 48

Let's proceed to step 6:
48 can be fit into 285 5 times, resulting in a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 13395.0
If we take 240 away from 285, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 7:
48 can be fit into 450 9 times, resulting in a remainder of 18.
The next digit of our result is 9. 
Result so far: 13395.9
If we subtract 432 from 450, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 8:
48 goes into 180 3 times with a remainder of 36.
Write down 3 as next digit of the result. 
Result so far: 13395.93
Subtracting 144 from 180 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 9:
48 can be fit into 360 7 times, resulting in a remainder of 24.
Write down 7 as next digit of the result. 
Result so far: 13395.937
Subtract 336 from 360 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
48 goes into 240 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 13395.9375
If we take 240 away from 240, 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.

On to step 11:
The number 48 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 13395.9375
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.

Moving on to step 12:
When dividing 0 by 48, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 13395.9375
If we subtract 0 from 0, 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.

After the division, we end up with 13395.9375 and a remainder of 0.0.