We look at the division of 678606 by 39 
The aim is to understand the frequency of 39 in 678606.

Moving on to step 1:
39 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 39

Moving on to step 2:
If we divide 67 by 39, we get 1 and a remainder of 28.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 39 from 67 leaves us with 28.
Bring next digit (8) of the dividend behind the 28 and repeat the process: 288 / 39

Advancing to step 3:
39 goes into 288 7 times with a remainder of 15.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Deduct 273 from 288 and we're left with 15.
Bring next digit (6) of the dividend behind the 15 and repeat the process: 156 / 39

Step 4:
156 divided by 39 is 4 with a remainder of 0.
Write down 4 as next digit of the result. 
Result so far: 174.0
If we subtract 156 from 156, we get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 39

Step 5:
39 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1740.0
Subtracting 0 from 0 leaves us with 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 39

On to step 6:
The number 39 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 17400.0
Subtract 0 from 6 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
60 divided by 39 is 1 with a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 17400.1
If we subtract 39 from 60, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 8:
If we divide 210 by 39, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 17400.15
If we subtract 195 from 210, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 9:
39 can be fit into 150 3 times, resulting in a remainder of 33.
Use 3 as the next digit of our solution. 
Result so far: 17400.153
Deduct 117 from 150 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 10:
39 can be fit into 330 8 times, resulting in a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 17400.1538
If we take 312 away from 330, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 11:
The number 39 fits into 180 4 times, leaving a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 17400.15384
If we subtract 156 from 180, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 12:
39 goes into 240 6 times with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 17400.153846
The remainder is 6 after subtracting 234 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
The number 39 fits into 60 1 times, leaving a remainder of 21.
Put 1 as the next digit of the answer. 
Result so far: 17400.1538461
If we take 39 away from 60, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 14:
210 divided by 39 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 17400.15384615
If we subtract 195 from 210, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final result is 17400.15384615 with a remainder of 1.5e-08.