We're dividing 40453389 by 784 
The aim is to understand the frequency of 784 in 40453389.

Moving on to step 1:
If we divide 4 by 784, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 784

Step 2:
When dividing 40 by 784, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Bring next digit (4) of the dividend behind the 40 and repeat the process: 404 / 784

Moving on to step 3:
784 can be fit into 404 0 times, resulting in a remainder of 404.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 404 to get 404.
Grab the next digit (5) from the dividend, add it to 404, then carry on: 4045 / 784

Let's proceed to step 4:
784 can be fit into 4045 5 times, resulting in a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 125 after subtracting 3920 from 4045.
Append the next digit (3) from the dividend to 125 and continue with: 1253 / 784

On to step 5:
When dividing 1253 by 784, we get 1 with a remainder of 469.
Write down 1 as next digit of the result. 
Result so far: 51.0
If we take 784 away from 1253, we end up with 469.
Grab the next digit (3) from the dividend, add it to 469, then carry on: 4693 / 784

Let's proceed to step 6:
If we divide 4693 by 784, we get 5 and a remainder of 773.
The next digit of our result is 5. 
Result so far: 515.0
The remainder is 773 after subtracting 3920 from 4693.
Fetch the next digit (8) from the dividend, attach it to 773 and continue: 7738 / 784

On to step 7:
784 goes into 7738 9 times with a remainder of 682.
Put 9 as the next digit of the answer. 
Result so far: 5159.0
Deduct 7056 from 7738 and we're left with 682.
Take the next digit (9) from the dividend and append it to 682, then repeat: 6829 / 784

On to step 8:
6829 divided by 784 is 8 with a remainder of 557.
Write down 8 as next digit of the result. 
Result so far: 51598.0
If we subtract 6272 from 6829, we get 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Step 9:
When dividing 5570 by 784, we get 7 with a remainder of 82.
Use 7 as the next digit of our solution. 
Result so far: 51598.7
Subtracting 5488 from 5570 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 10:
If we divide 820 by 784, we get 1 and a remainder of 36.
Put 1 as the next digit of the answer. 
Result so far: 51598.71
Deduct 784 from 820 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 11:
The number 784 fits into 360 0 times, leaving a remainder of 360.
Record the quotient 0 as the next digit in the result. 
Result so far: 51598.71
Subtract 0 from 360 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 12:
3600 divided by 784 is 4 with a remainder of 464.
The number 4 becomes the next digit in our result. 
Result so far: 51598.7104
Subtracting 3136 from 3600 leaves us with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

On to step 13:
When dividing 4640 by 784, we get 5 with a remainder of 720.
The number 5 becomes the next digit in our result. 
Result so far: 51598.71045
Deduct 3920 from 4640 and we're left with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

On to step 14:
784 goes into 7200 9 times with a remainder of 144.
Use 9 as the next digit of our solution. 
Result so far: 51598.710459
If we take 7056 away from 7200, we end up with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 15:
1440 divided by 784 is 1 with a remainder of 656.
Record the quotient 1 as the next digit in the result. 
Result so far: 51598.7104591
If we subtract 784 from 1440, we get 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

On to step 16:
784 can be fit into 6560 8 times, resulting in a remainder of 288.
Use 8 as the next digit of our solution. 
Result so far: 51598.71045918
Deduct 6272 from 6560 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Our division results in 51598.71045918 with a remaining 2.88e-07.