We divide 53711919 by 325
The aim is to understand the frequency of 325 in 53711919.

On to step 1:
The number 325 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 325

On to step 2:
If we divide 53 by 325, we get 0 and a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Grab the next digit (7) from the dividend, add it to 53, then carry on: 537 / 325

Moving on to step 3:
The number 325 fits into 537 1 times, leaving a remainder of 212.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 325 from 537 to get 212.
Bring next digit (1) of the dividend behind the 212 and repeat the process: 2121 / 325

Step 4:
325 can be fit into 2121 6 times, resulting in a remainder of 171.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we take 1950 away from 2121, we end up with 171.
Bring next digit (1) of the dividend behind the 171 and repeat the process: 1711 / 325

On to step 5:
If we divide 1711 by 325, we get 5 and a remainder of 86.
The next digit of our result is 5. 
Result so far: 165.0
If we take 1625 away from 1711, we end up with 86.
Take the next digit (9) from the dividend and append it to 86, then repeat: 869 / 325

Let's proceed to step 6:
When dividing 869 by 325, we get 2 with a remainder of 219.
Write down 2 as next digit of the result. 
Result so far: 1652.0
If we subtract 650 from 869, we get 219.
Include the next digit (1) from the dividend after 219, then repeat: 2191 / 325

On to step 7:
2191 divided by 325 is 6 with a remainder of 241.
The next digit of our result is 6. 
Result so far: 16526.0
Deduct 1950 from 2191 and we're left with 241.
Take the next digit (9) from the dividend and append it to 241, then repeat: 2419 / 325

Going ahead to step 8:
325 goes into 2419 7 times with a remainder of 144.
The next digit of our result is 7. 
Result so far: 165267.0
The remainder is 144 after subtracting 2275 from 2419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Step 9:
325 goes into 1440 4 times with a remainder of 140.
Use 4 as the next digit of our solution. 
Result so far: 165267.4
Subtract 1300 from 1440 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Advancing to step 10:
When dividing 1400 by 325, we get 4 with a remainder of 100.
Record the quotient 4 as the next digit in the result. 
Result so far: 165267.44
Subtract 1300 from 1400 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Our division results in 165267.44 with a remaining 0.1.