We look at the division of 42850418 by 783 
The aim is to understand the frequency of 783 in 42850418.

Going ahead to step 1:
4 divided by 783 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 783

Going ahead to step 2:
783 goes into 42 0 times with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Append the next digit (8) from the dividend to 42 and continue with: 428 / 783

Let's proceed to step 3:
428 divided by 783 is 0 with a remainder of 428.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 428, we end up with 428.
Include the next digit (5) from the dividend after 428, then repeat: 4285 / 783

Let's proceed to step 4:
If we divide 4285 by 783, we get 5 and a remainder of 370.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 3915 away from 4285, we end up with 370.
Take the next digit (0) from the dividend and append it to 370, then repeat: 3700 / 783

Moving on to step 5:
783 can be fit into 3700 4 times, resulting in a remainder of 568.
The number 4 becomes the next digit in our result. 
Result so far: 54.0
Deduct 3132 from 3700 and we're left with 568.
Grab the next digit (4) from the dividend, add it to 568, then carry on: 5684 / 783

On to step 6:
783 goes into 5684 7 times with a remainder of 203.
Put 7 as the next digit of the answer. 
Result so far: 547.0
If we subtract 5481 from 5684, we get 203.
Bring next digit (1) of the dividend behind the 203 and repeat the process: 2031 / 783

Advancing to step 7:
When dividing 2031 by 783, we get 2 with a remainder of 465.
Use 2 as the next digit of our solution. 
Result so far: 5472.0
Deduct 1566 from 2031 and we're left with 465.
Bring next digit (8) of the dividend behind the 465 and repeat the process: 4658 / 783

Going ahead to step 8:
4658 divided by 783 is 5 with a remainder of 743.
The number 5 becomes the next digit in our result. 
Result so far: 54725.0
If we take 3915 away from 4658, we end up with 743.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7430, and continue the process.

On to step 9:
7430 divided by 783 is 9 with a remainder of 383.
Use 9 as the next digit of our solution. 
Result so far: 54725.9
Deduct 7047 from 7430 and we're left with 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Let's proceed to step 10:
3830 divided by 783 is 4 with a remainder of 698.
Record the quotient 4 as the next digit in the result. 
Result so far: 54725.94
Subtract 3132 from 3830 to get 698.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6980, and continue the process.

Moving on to step 11:
The number 783 fits into 6980 8 times, leaving a remainder of 716.
Put 8 as the next digit of the answer. 
Result so far: 54725.948
The remainder is 716 after subtracting 6264 from 6980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Moving on to step 12:
783 goes into 7160 9 times with a remainder of 113.
Write down 9 as next digit of the result. 
Result so far: 54725.9489
Subtract 7047 from 7160 to get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Moving on to step 13:
1130 divided by 783 is 1 with a remainder of 347.
Use 1 as the next digit of our solution. 
Result so far: 54725.94891
If we take 783 away from 1130, we end up with 347.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3470, and continue the process.

On to step 14:
3470 divided by 783 is 4 with a remainder of 338.
Use 4 as the next digit of our solution. 
Result so far: 54725.948914
The remainder is 338 after subtracting 3132 from 3470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Advancing to step 15:
When dividing 3380 by 783, we get 4 with a remainder of 248.
Use 4 as the next digit of our solution. 
Result so far: 54725.9489144
Subtract 3132 from 3380 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

After the division, we end up with 54725.9489144 and a remainder of 2.48e-06.