Let's divide 53509681 by 111
The aim is to understand the frequency of 111 in 53509681.

Step 1:
111 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 111

On to step 2:
The number 111 fits into 53 0 times, leaving a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Take the next digit (5) from the dividend and append it to 53, then repeat: 535 / 111

On to step 3:
When dividing 535 by 111, we get 4 with a remainder of 91.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 444 from 535 leaves us with 91.
Bring next digit (0) of the dividend behind the 91 and repeat the process: 910 / 111

Moving on to step 4:
111 can be fit into 910 8 times, resulting in a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 48.0
Subtract 888 from 910 to get 22.
Append the next digit (9) from the dividend to 22 and continue with: 229 / 111

Going ahead to step 5:
If we divide 229 by 111, we get 2 and a remainder of 7.
The number 2 becomes the next digit in our result. 
Result so far: 482.0
The remainder is 7 after subtracting 222 from 229.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 111

Let's proceed to step 6:
76 divided by 111 is 0 with a remainder of 76.
Record the quotient 0 as the next digit in the result. 
Result so far: 4820.0
Deduct 0 from 76 and we're left with 76.
Bring next digit (8) of the dividend behind the 76 and repeat the process: 768 / 111

Moving on to step 7:
When dividing 768 by 111, we get 6 with a remainder of 102.
The number 6 becomes the next digit in our result. 
Result so far: 48206.0
Subtracting 666 from 768 leaves us with 102.
Include the next digit (1) from the dividend after 102, then repeat: 1021 / 111

Moving on to step 8:
111 can be fit into 1021 9 times, resulting in a remainder of 22.
Use 9 as the next digit of our solution. 
Result so far: 482069.0
Deduct 999 from 1021 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 9:
111 can be fit into 220 1 times, resulting in a remainder of 109.
Put 1 as the next digit of the answer. 
Result so far: 482069.1
Deduct 111 from 220 and we're left with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

On to step 10:
If we divide 1090 by 111, we get 9 and a remainder of 91.
The next digit of our result is 9. 
Result so far: 482069.19
Deduct 999 from 1090 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Let's proceed to step 11:
When dividing 910 by 111, we get 8 with a remainder of 22.
The next digit of our result is 8. 
Result so far: 482069.198
Subtract 888 from 910 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 12:
The number 111 fits into 220 1 times, leaving a remainder of 109.
The number 1 becomes the next digit in our result. 
Result so far: 482069.1981
Subtracting 111 from 220 leaves us with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

On to step 13:
When dividing 1090 by 111, we get 9 with a remainder of 91.
Use 9 as the next digit of our solution. 
Result so far: 482069.19819
The remainder is 91 after subtracting 999 from 1090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 14:
910 divided by 111 is 8 with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 482069.198198
The remainder is 22 after subtracting 888 from 910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 15:
When dividing 220 by 111, we get 1 with a remainder of 109.
The next digit of our result is 1. 
Result so far: 482069.1981981
Deduct 111 from 220 and we're left with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Let's proceed to step 16:
When dividing 1090 by 111, we get 9 with a remainder of 91.
The number 9 becomes the next digit in our result. 
Result so far: 482069.19819819
If we take 999 away from 1090, we end up with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

The quotient of the division is 482069.19819819, and the remainder is 9.1e-08.