We look at the division of 54709246 by 783 
The aim is to understand the frequency of 783 in 54709246.

On to step 1:
5 divided by 783 is 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 783

On to step 2:
783 goes into 54 0 times with a remainder of 54.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 54, we get 54.
Append the next digit (7) from the dividend to 54 and continue with: 547 / 783

Advancing to step 3:
547 divided by 783 is 0 with a remainder of 547.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 547 and we're left with 547.
Fetch the next digit (0) from the dividend, attach it to 547 and continue: 5470 / 783

Going ahead to step 4:
783 goes into 5470 6 times with a remainder of 772.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we take 4698 away from 5470, we end up with 772.
Bring next digit (9) of the dividend behind the 772 and repeat the process: 7729 / 783

Moving on to step 5:
If we divide 7729 by 783, we get 9 and a remainder of 682.
Write down 9 as next digit of the result. 
Result so far: 69.0
If we take 7047 away from 7729, we end up with 682.
Grab the next digit (2) from the dividend, add it to 682, then carry on: 6822 / 783

Advancing to step 6:
If we divide 6822 by 783, we get 8 and a remainder of 558.
Record the quotient 8 as the next digit in the result. 
Result so far: 698.0
Subtract 6264 from 6822 to get 558.
Grab the next digit (4) from the dividend, add it to 558, then carry on: 5584 / 783

Advancing to step 7:
If we divide 5584 by 783, we get 7 and a remainder of 103.
The next digit of our result is 7. 
Result so far: 6987.0
Subtracting 5481 from 5584 leaves us with 103.
Bring next digit (6) of the dividend behind the 103 and repeat the process: 1036 / 783

Advancing to step 8:
783 goes into 1036 1 times with a remainder of 253.
The number 1 becomes the next digit in our result. 
Result so far: 69871.0
Subtract 783 from 1036 to get 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Moving on to step 9:
If we divide 2530 by 783, we get 3 and a remainder of 181.
The number 3 becomes the next digit in our result. 
Result so far: 69871.3
Subtracting 2349 from 2530 leaves us with 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Going ahead to step 10:
When dividing 1810 by 783, we get 2 with a remainder of 244.
The next digit of our result is 2. 
Result so far: 69871.32
If we take 1566 away from 1810, we end up with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Let's proceed to step 11:
When dividing 2440 by 783, we get 3 with a remainder of 91.
Put 3 as the next digit of the answer. 
Result so far: 69871.323
The remainder is 91 after subtracting 2349 from 2440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

On to step 12:
783 can be fit into 910 1 times, resulting in a remainder of 127.
Record the quotient 1 as the next digit in the result. 
Result so far: 69871.3231
If we take 783 away from 910, we end up with 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Advancing to step 13:
When dividing 1270 by 783, we get 1 with a remainder of 487.
Write down 1 as next digit of the result. 
Result so far: 69871.32311
Deduct 783 from 1270 and we're left with 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

The final result is 69871.32311 with a remainder of 0.000487.