We look at the division of 12712902 by 346 
The aim is to understand the frequency of 346 in 12712902.

Step 1:
346 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 346

Advancing to step 2:
The number 346 fits into 12 0 times, leaving a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Include the next digit (7) from the dividend after 12, then repeat: 127 / 346

Moving on to step 3:
When dividing 127 by 346, we get 0 with a remainder of 127.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 127, we get 127.
Include the next digit (1) from the dividend after 127, then repeat: 1271 / 346

On to step 4:
1271 divided by 346 is 3 with a remainder of 233.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 1038 from 1271 and we're left with 233.
Bring next digit (2) of the dividend behind the 233 and repeat the process: 2332 / 346

Going ahead to step 5:
When dividing 2332 by 346, we get 6 with a remainder of 256.
Use 6 as the next digit of our solution. 
Result so far: 36.0
Subtract 2076 from 2332 to get 256.
Take the next digit (9) from the dividend and append it to 256, then repeat: 2569 / 346

On to step 6:
When dividing 2569 by 346, we get 7 with a remainder of 147.
The number 7 becomes the next digit in our result. 
Result so far: 367.0
Deduct 2422 from 2569 and we're left with 147.
Include the next digit (0) from the dividend after 147, then repeat: 1470 / 346

Let's proceed to step 7:
1470 divided by 346 is 4 with a remainder of 86.
Write down 4 as next digit of the result. 
Result so far: 3674.0
Deduct 1384 from 1470 and we're left with 86.
Include the next digit (2) from the dividend after 86, then repeat: 862 / 346

Step 8:
If we divide 862 by 346, we get 2 and a remainder of 170.
The number 2 becomes the next digit in our result. 
Result so far: 36742.0
If we subtract 692 from 862, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 9:
When dividing 1700 by 346, we get 4 with a remainder of 316.
Use 4 as the next digit of our solution. 
Result so far: 36742.4
The remainder is 316 after subtracting 1384 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Step 10:
346 goes into 3160 9 times with a remainder of 46.
The next digit of our result is 9. 
Result so far: 36742.49
Subtracting 3114 from 3160 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 11:
460 divided by 346 is 1 with a remainder of 114.
Put 1 as the next digit of the answer. 
Result so far: 36742.491
The remainder is 114 after subtracting 346 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

On to step 12:
The number 346 fits into 1140 3 times, leaving a remainder of 102.
Write down 3 as next digit of the result. 
Result so far: 36742.4913
Subtracting 1038 from 1140 leaves us with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Going ahead to step 13:
The number 346 fits into 1020 2 times, leaving a remainder of 328.
Put 2 as the next digit of the answer. 
Result so far: 36742.49132
If we subtract 692 from 1020, we get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Advancing to step 14:
346 goes into 3280 9 times with a remainder of 166.
Record the quotient 9 as the next digit in the result. 
Result so far: 36742.491329
Deduct 3114 from 3280 and we're left with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Step 15:
When dividing 1660 by 346, we get 4 with a remainder of 276.
Use 4 as the next digit of our solution. 
Result so far: 36742.4913294
Deduct 1384 from 1660 and we're left with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

On to step 16:
If we divide 2760 by 346, we get 7 and a remainder of 338.
Use 7 as the next digit of our solution. 
Result so far: 36742.49132947
Subtracting 2422 from 2760 leaves us with 338.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

The final outcome is 36742.49132947, with a leftover of 3.38e-07.