We divide 312781 by 69
The aim is to understand the frequency of 69 in 312781.

Step 1:
When dividing 3 by 69, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 69

Moving on to step 2:
The number 69 fits into 31 0 times, leaving a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Take the next digit (2) from the dividend and append it to 31, then repeat: 312 / 69

Step 3:
When dividing 312 by 69, we get 4 with a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 36 after subtracting 276 from 312.
Append the next digit (7) from the dividend to 36 and continue with: 367 / 69

On to step 4:
367 divided by 69 is 5 with a remainder of 22.
Put 5 as the next digit of the answer. 
Result so far: 45.0
Deduct 345 from 367 and we're left with 22.
Bring next digit (8) of the dividend behind the 22 and repeat the process: 228 / 69

Step 5:
69 goes into 228 3 times with a remainder of 21.
The number 3 becomes the next digit in our result. 
Result so far: 453.0
Deduct 207 from 228 and we're left with 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 69

Step 6:
If we divide 211 by 69, we get 3 and a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 4533.0
The remainder is 4 after subtracting 207 from 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
When dividing 40 by 69, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 4533.0
Subtract 0 from 40 to 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.

Advancing to step 8:
69 goes into 400 5 times with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 4533.05
If we subtract 345 from 400, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 9:
69 goes into 550 7 times with a remainder of 67.
Put 7 as the next digit of the answer. 
Result so far: 4533.057
If we subtract 483 from 550, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Let's proceed to step 10:
When dividing 670 by 69, we get 9 with a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 4533.0579
Subtracting 621 from 670 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 11:
69 can be fit into 490 7 times, resulting in a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 4533.05797
Subtract 483 from 490 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 12:
69 goes into 70 1 times with a remainder of 1.
The next digit of our result is 1. 
Result so far: 4533.057971
If we subtract 69 from 70, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 13:
10 divided by 69 is 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 4533.057971
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 14:
The number 69 fits into 100 1 times, leaving a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 4533.05797101
Subtracting 69 from 100 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

The final outcome is 4533.05797101, with a leftover of 3.1e-08.