39909379 divided by 412 
The aim is to understand the frequency of 412 in 39909379.

Going ahead to step 1:
If we divide 3 by 412, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 412

Going ahead to step 2:
412 goes into 39 0 times with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 412

Let's proceed to step 3:
412 can be fit into 399 0 times, resulting in a remainder of 399.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 399 and we're left with 399.
Take the next digit (0) from the dividend and append it to 399, then repeat: 3990 / 412

Step 4:
The number 412 fits into 3990 9 times, leaving a remainder of 282.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 3708 away from 3990, we end up with 282.
Append the next digit (9) from the dividend to 282 and continue with: 2829 / 412

Going ahead to step 5:
412 goes into 2829 6 times with a remainder of 357.
Use 6 as the next digit of our solution. 
Result so far: 96.0
If we subtract 2472 from 2829, we get 357.
Take the next digit (3) from the dividend and append it to 357, then repeat: 3573 / 412

On to step 6:
412 can be fit into 3573 8 times, resulting in a remainder of 277.
Put 8 as the next digit of the answer. 
Result so far: 968.0
If we subtract 3296 from 3573, we get 277.
Include the next digit (7) from the dividend after 277, then repeat: 2777 / 412

Advancing to step 7:
When dividing 2777 by 412, we get 6 with a remainder of 305.
Write down 6 as next digit of the result. 
Result so far: 9686.0
Subtract 2472 from 2777 to get 305.
Grab the next digit (9) from the dividend, add it to 305, then carry on: 3059 / 412

Advancing to step 8:
412 can be fit into 3059 7 times, resulting in a remainder of 175.
The next digit of our result is 7. 
Result so far: 96867.0
If we take 2884 away from 3059, we end up with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

On to step 9:
412 can be fit into 1750 4 times, resulting in a remainder of 102.
Write down 4 as next digit of the result. 
Result so far: 96867.4
The remainder is 102 after subtracting 1648 from 1750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Advancing to step 10:
412 goes into 1020 2 times with a remainder of 196.
Record the quotient 2 as the next digit in the result. 
Result so far: 96867.42
Subtracting 824 from 1020 leaves us with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Let's proceed to step 11:
When dividing 1960 by 412, we get 4 with a remainder of 312.
Put 4 as the next digit of the answer. 
Result so far: 96867.424
If we subtract 1648 from 1960, we get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

On to step 12:
The number 412 fits into 3120 7 times, leaving a remainder of 236.
Write down 7 as next digit of the result. 
Result so far: 96867.4247
If we take 2884 away from 3120, we end up with 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 13:
When dividing 2360 by 412, we get 5 with a remainder of 300.
Record the quotient 5 as the next digit in the result. 
Result so far: 96867.42475
The remainder is 300 after subtracting 2060 from 2360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 14:
3000 divided by 412 is 7 with a remainder of 116.
Put 7 as the next digit of the answer. 
Result so far: 96867.424757
The remainder is 116 after subtracting 2884 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 15:
When dividing 1160 by 412, we get 2 with a remainder of 336.
Write down 2 as next digit of the result. 
Result so far: 96867.4247572
Subtracting 824 from 1160 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Let's proceed to step 16:
412 can be fit into 3360 8 times, resulting in a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 96867.42475728
Subtract 3296 from 3360 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final outcome is 96867.42475728, with a leftover of 6.4e-08.