We look at the division of 39211705 by 307 
The aim is to understand the frequency of 307 in 39211705.

Advancing to step 1:
307 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 307

Advancing to step 2:
39 divided by 307 is 0 with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Append the next digit (2) from the dividend to 39 and continue with: 392 / 307

Step 3:
307 goes into 392 1 times with a remainder of 85.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 307 from 392 to get 85.
Include the next digit (1) from the dividend after 85, then repeat: 851 / 307

On to step 4:
If we divide 851 by 307, we get 2 and a remainder of 237.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 614 from 851, we get 237.
Append the next digit (1) from the dividend to 237 and continue with: 2371 / 307

Step 5:
When dividing 2371 by 307, we get 7 with a remainder of 222.
Record the quotient 7 as the next digit in the result. 
Result so far: 127.0
Subtract 2149 from 2371 to get 222.
Grab the next digit (7) from the dividend, add it to 222, then carry on: 2227 / 307

Advancing to step 6:
When dividing 2227 by 307, we get 7 with a remainder of 78.
Record the quotient 7 as the next digit in the result. 
Result so far: 1277.0
Subtracting 2149 from 2227 leaves us with 78.
Take the next digit (0) from the dividend and append it to 78, then repeat: 780 / 307

Step 7:
307 goes into 780 2 times with a remainder of 166.
Record the quotient 2 as the next digit in the result. 
Result so far: 12772.0
Subtracting 614 from 780 leaves us with 166.
Grab the next digit (5) from the dividend, add it to 166, then carry on: 1665 / 307

Going ahead to step 8:
1665 divided by 307 is 5 with a remainder of 130.
Record the quotient 5 as the next digit in the result. 
Result so far: 127725.0
If we take 1535 away from 1665, we end up with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 9:
The number 307 fits into 1300 4 times, leaving a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 127725.4
Subtract 1228 from 1300 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 10:
When dividing 720 by 307, we get 2 with a remainder of 106.
The next digit of our result is 2. 
Result so far: 127725.42
Subtract 614 from 720 to get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Going ahead to step 11:
The number 307 fits into 1060 3 times, leaving a remainder of 139.
Put 3 as the next digit of the answer. 
Result so far: 127725.423
Deduct 921 from 1060 and we're left with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Going ahead to step 12:
307 goes into 1390 4 times with a remainder of 162.
Put 4 as the next digit of the answer. 
Result so far: 127725.4234
If we subtract 1228 from 1390, we get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Going ahead to step 13:
If we divide 1620 by 307, we get 5 and a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 127725.42345
The remainder is 85 after subtracting 1535 from 1620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 14:
850 divided by 307 is 2 with a remainder of 236.
Write down 2 as next digit of the result. 
Result so far: 127725.423452
If we subtract 614 from 850, we get 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Going ahead to step 15:
307 goes into 2360 7 times with a remainder of 211.
Put 7 as the next digit of the answer. 
Result so far: 127725.4234527
If we subtract 2149 from 2360, we get 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Let's proceed to step 16:
307 can be fit into 2110 6 times, resulting in a remainder of 268.
Record the quotient 6 as the next digit in the result. 
Result so far: 127725.42345276
If we take 1842 away from 2110, we end up with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

The final outcome is 127725.42345276, with a leftover of 2.68e-07.