Let's divide 15928784 by 781
The aim is to understand the frequency of 781 in 15928784.

Let's proceed to step 1:
781 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 781

Let's proceed to step 2:
When dividing 15 by 781, we get 0 with a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Append the next digit (9) from the dividend to 15 and continue with: 159 / 781

Let's proceed to step 3:
781 can be fit into 159 0 times, resulting in a remainder of 159.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 159 and we're left with 159.
Grab the next digit (2) from the dividend, add it to 159, then carry on: 1592 / 781

Step 4:
The number 781 fits into 1592 2 times, leaving a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 1562 from 1592 and we're left with 30.
Grab the next digit (8) from the dividend, add it to 30, then carry on: 308 / 781

Step 5:
If we divide 308 by 781, we get 0 and a remainder of 308.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we subtract 0 from 308, we get 308.
Grab the next digit (7) from the dividend, add it to 308, then carry on: 3087 / 781

Step 6:
3087 divided by 781 is 3 with a remainder of 744.
The number 3 becomes the next digit in our result. 
Result so far: 203.0
Deduct 2343 from 3087 and we're left with 744.
Fetch the next digit (8) from the dividend, attach it to 744 and continue: 7448 / 781

Moving on to step 7:
The number 781 fits into 7448 9 times, leaving a remainder of 419.
Use 9 as the next digit of our solution. 
Result so far: 2039.0
Subtract 7029 from 7448 to get 419.
Include the next digit (4) from the dividend after 419, then repeat: 4194 / 781

Moving on to step 8:
If we divide 4194 by 781, we get 5 and a remainder of 289.
Record the quotient 5 as the next digit in the result. 
Result so far: 20395.0
If we take 3905 away from 4194, we end up with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

On to step 9:
If we divide 2890 by 781, we get 3 and a remainder of 547.
Put 3 as the next digit of the answer. 
Result so far: 20395.3
Deduct 2343 from 2890 and we're left with 547.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5470, and continue the process.

Step 10:
5470 divided by 781 is 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 20395.37
Subtract 5467 from 5470 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 11:
781 goes into 30 0 times with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 20395.37
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
781 can be fit into 300 0 times, resulting in a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 20395.37
If we subtract 0 from 300, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

After the division, we end up with 20395.37 and a remainder of 0.003.