878303 divided by 69 
The aim is to understand the frequency of 69 in 878303.

Moving on to step 1:
8 divided by 69 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 69

Let's proceed to step 2:
87 divided by 69 is 1 with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 69 from 87, we get 18.
Bring next digit (8) of the dividend behind the 18 and repeat the process: 188 / 69

Moving on to step 3:
When dividing 188 by 69, we get 2 with a remainder of 50.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 138 from 188 leaves us with 50.
Bring next digit (3) of the dividend behind the 50 and repeat the process: 503 / 69

Let's proceed to step 4:
69 goes into 503 7 times with a remainder of 20.
Put 7 as the next digit of the answer. 
Result so far: 127.0
Subtract 483 from 503 to get 20.
Take the next digit (0) from the dividend and append it to 20, then repeat: 200 / 69

Step 5:
If we divide 200 by 69, we get 2 and a remainder of 62.
Write down 2 as next digit of the result. 
Result so far: 1272.0
The remainder is 62 after subtracting 138 from 200.
Include the next digit (3) from the dividend after 62, then repeat: 623 / 69

On to step 6:
623 divided by 69 is 9 with a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 12729.0
The remainder is 2 after subtracting 621 from 623.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
When dividing 20 by 69, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 12729.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 8:
The number 69 fits into 200 2 times, leaving a remainder of 62.
The number 2 becomes the next digit in our result. 
Result so far: 12729.02
Deduct 138 from 200 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 9:
When dividing 620 by 69, we get 8 with a remainder of 68.
The next digit of our result is 8. 
Result so far: 12729.028
The remainder is 68 after subtracting 552 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 10:
680 divided by 69 is 9 with a remainder of 59.
Record the quotient 9 as the next digit in the result. 
Result so far: 12729.0289
Subtracting 621 from 680 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Moving on to step 11:
590 divided by 69 is 8 with a remainder of 38.
The next digit of our result is 8. 
Result so far: 12729.02898
Deduct 552 from 590 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 12:
69 can be fit into 380 5 times, resulting in a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 12729.028985
Deduct 345 from 380 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 13:
When dividing 350 by 69, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 12729.0289855
If we take 345 away from 350, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 12729.0289855 with a remainder of 5e-08.