15439074 ÷ 784 
The aim is to understand the frequency of 784 in 15439074.

Step 1:
1 divided by 784 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 784

Advancing to step 2:
If we divide 15 by 784, we get 0 and a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 784

Let's proceed to step 3:
784 can be fit into 154 0 times, resulting in a remainder of 154.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 154, we end up with 154.
Bring next digit (3) of the dividend behind the 154 and repeat the process: 1543 / 784

On to step 4:
If we divide 1543 by 784, we get 1 and a remainder of 759.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 784 from 1543 and we're left with 759.
Include the next digit (9) from the dividend after 759, then repeat: 7599 / 784

Moving on to step 5:
When dividing 7599 by 784, we get 9 with a remainder of 543.
The next digit of our result is 9. 
Result so far: 19.0
If we subtract 7056 from 7599, we get 543.
Fetch the next digit (0) from the dividend, attach it to 543 and continue: 5430 / 784

Let's proceed to step 6:
5430 divided by 784 is 6 with a remainder of 726.
Put 6 as the next digit of the answer. 
Result so far: 196.0
Deduct 4704 from 5430 and we're left with 726.
Bring next digit (7) of the dividend behind the 726 and repeat the process: 7267 / 784

Going ahead to step 7:
7267 divided by 784 is 9 with a remainder of 211.
Record the quotient 9 as the next digit in the result. 
Result so far: 1969.0
If we take 7056 away from 7267, we end up with 211.
Fetch the next digit (4) from the dividend, attach it to 211 and continue: 2114 / 784

Step 8:
784 goes into 2114 2 times with a remainder of 546.
Record the quotient 2 as the next digit in the result. 
Result so far: 19692.0
Subtracting 1568 from 2114 leaves us with 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

Step 9:
784 can be fit into 5460 6 times, resulting in a remainder of 756.
Put 6 as the next digit of the answer. 
Result so far: 19692.6
Deduct 4704 from 5460 and we're left with 756.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7560, and continue the process.

Going ahead to step 10:
If we divide 7560 by 784, we get 9 and a remainder of 504.
The number 9 becomes the next digit in our result. 
Result so far: 19692.69
Subtract 7056 from 7560 to get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Going ahead to step 11:
5040 divided by 784 is 6 with a remainder of 336.
The number 6 becomes the next digit in our result. 
Result so far: 19692.696
Deduct 4704 from 5040 and we're left 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.

Going ahead to step 12:
3360 divided by 784 is 4 with a remainder of 224.
Use 4 as the next digit of our solution. 
Result so far: 19692.6964
Subtracting 3136 from 3360 leaves us with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Moving on to step 13:
784 can be fit into 2240 2 times, resulting in a remainder of 672.
The next digit of our result is 2. 
Result so far: 19692.69642
The remainder is 672 after subtracting 1568 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

On to step 14:
6720 divided by 784 is 8 with a remainder of 448.
Write down 8 as next digit of the result. 
Result so far: 19692.696428
The remainder is 448 after subtracting 6272 from 6720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Going ahead to step 15:
4480 divided by 784 is 5 with a remainder of 560.
Write down 5 as next digit of the result. 
Result so far: 19692.6964285
If we subtract 3920 from 4480, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Let's proceed to step 16:
The number 784 fits into 5600 7 times, leaving a remainder of 112.
The number 7 becomes the next digit in our result. 
Result so far: 19692.69642857
If we subtract 5488 from 5600, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

The final outcome is 19692.69642857, with a leftover of 1.12e-07.