717553 ÷ 39 
The aim is to understand the frequency of 39 in 717553.

Advancing to step 1:
39 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 39

Going ahead to step 2:
71 divided by 39 is 1 with a remainder of 32.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 39 from 71, we get 32.
Grab the next digit (7) from the dividend, add it to 32, then carry on: 327 / 39

Step 3:
If we divide 327 by 39, we get 8 and a remainder of 15.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Deduct 312 from 327 and we're left with 15.
Grab the next digit (5) from the dividend, add it to 15, then carry on: 155 / 39

Going ahead to step 4:
39 can be fit into 155 3 times, resulting in a remainder of 38.
Record the quotient 3 as the next digit in the result. 
Result so far: 183.0
Subtract 117 from 155 to get 38.
Fetch the next digit (5) from the dividend, attach it to 38 and continue: 385 / 39

Moving on to step 5:
When dividing 385 by 39, we get 9 with a remainder of 34.
The next digit of our result is 9. 
Result so far: 1839.0
Subtracting 351 from 385 leaves us with 34.
Include the next digit (3) from the dividend after 34, then repeat: 343 / 39

Moving on to step 6:
If we divide 343 by 39, we get 8 and a remainder of 31.
Record the quotient 8 as the next digit in the result. 
Result so far: 18398.0
Deduct 312 from 343 and we're left 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.

On to step 7:
When dividing 310 by 39, we get 7 with a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 18398.7
Deduct 273 from 310 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 8:
When dividing 370 by 39, we get 9 with a remainder of 19.
The next digit of our result is 9. 
Result so far: 18398.79
If we take 351 away from 370, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 9:
The number 39 fits into 190 4 times, leaving a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 18398.794
Subtracting 156 from 190 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 10:
39 can be fit into 340 8 times, resulting in a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 18398.7948
If we subtract 312 from 340, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 11:
When dividing 280 by 39, we get 7 with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 18398.79487
Subtract 273 from 280 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.

Let's proceed to step 12:
70 divided by 39 is 1 with a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 18398.794871
If we take 39 away from 70, we end up 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.

On to step 13:
310 divided by 39 is 7 with a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 18398.7948717
The remainder is 37 after subtracting 273 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 14:
If we divide 370 by 39, we get 9 and a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 18398.79487179
If we take 351 away from 370, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final outcome is 18398.79487179, with a leftover of 1.9e-08.