Let's divide 71518480 by 39
The aim is to understand the frequency of 39 in 71518480.

Advancing to step 1:
39 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 39

Moving on to step 2:
The number 39 fits into 71 1 times, leaving a remainder of 32.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 39 from 71 leaves us with 32.
Grab the next digit (5) from the dividend, add it to 32, then carry on: 325 / 39

Step 3:
39 can be fit into 325 8 times, resulting in a remainder of 13.
Use 8 as the next digit of our solution. 
Result so far: 18.0
The remainder is 13 after subtracting 312 from 325.
Bring next digit (1) of the dividend behind the 13 and repeat the process: 131 / 39

Step 4:
If we divide 131 by 39, we get 3 and a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 183.0
The remainder is 14 after subtracting 117 from 131.
Append the next digit (8) from the dividend to 14 and continue with: 148 / 39

Going ahead to step 5:
39 can be fit into 148 3 times, resulting in a remainder of 31.
Write down 3 as next digit of the result. 
Result so far: 1833.0
If we take 117 away from 148, we end up with 31.
Include the next digit (4) from the dividend after 31, then repeat: 314 / 39

Moving on to step 6:
314 divided by 39 is 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 18338.0
If we take 312 away from 314, we end up with 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 39

Step 7:
When dividing 28 by 39, we get 0 with a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 183380.0
If we take 0 away from 28, we end up with 28.
Include the next digit (0) from the dividend after 28, then repeat: 280 / 39

Going ahead to step 8:
39 goes into 280 7 times with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 1833807.0
The remainder is 7 after subtracting 273 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 9:
39 goes into 70 1 times with a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 1833807.1
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.

Going ahead to step 10:
39 can be fit into 310 7 times, resulting in a remainder of 37.
The next digit of our result is 7. 
Result so far: 1833807.17
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.

Advancing to step 11:
370 divided by 39 is 9 with a remainder of 19.
The next digit of our result is 9. 
Result so far: 1833807.179
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 12:
39 goes into 190 4 times with a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 1833807.1794
Subtract 156 from 190 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 13:
If we divide 340 by 39, we get 8 and a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 1833807.17948
Subtracting 312 from 340 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 14:
280 divided by 39 is 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 1833807.179487
The remainder is 7 after subtracting 273 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 15:
39 goes into 70 1 times with a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 1833807.1794871
The remainder is 31 after subtracting 39 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 16:
310 divided by 39 is 7 with a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 1833807.17948717
If we subtract 273 from 310, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

After the division, we end up with 1833807.17948717 and a remainder of 3.7e-08.