We look at the division of 78630181 by 787 
The aim is to understand the frequency of 787 in 78630181.

Step 1:
The number 787 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 787

On to step 2:
When dividing 78 by 787, we get 0 with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Include the next digit (6) from the dividend after 78, then repeat: 786 / 787

Moving on to step 3:
When dividing 786 by 787, we get 0 with a remainder of 786.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 786 leaves us with 786.
Include the next digit (3) from the dividend after 786, then repeat: 7863 / 787

Moving on to step 4:
787 goes into 7863 9 times with a remainder of 780.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtract 7083 from 7863 to get 780.
Append the next digit (0) from the dividend to 780 and continue with: 7800 / 787

Going ahead to step 5:
When dividing 7800 by 787, we get 9 with a remainder of 717.
Use 9 as the next digit of our solution. 
Result so far: 99.0
Subtract 7083 from 7800 to get 717.
Append the next digit (1) from the dividend to 717 and continue with: 7171 / 787

Let's proceed to step 6:
When dividing 7171 by 787, we get 9 with a remainder of 88.
The next digit of our result is 9. 
Result so far: 999.0
Subtracting 7083 from 7171 leaves us with 88.
Grab the next digit (8) from the dividend, add it to 88, then carry on: 888 / 787

Going ahead to step 7:
787 can be fit into 888 1 times, resulting in a remainder of 101.
The next digit of our result is 1. 
Result so far: 9991.0
The remainder is 101 after subtracting 787 from 888.
Bring next digit (1) of the dividend behind the 101 and repeat the process: 1011 / 787

Moving on to step 8:
If we divide 1011 by 787, we get 1 and a remainder of 224.
Put 1 as the next digit of the answer. 
Result so far: 99911.0
Subtract 787 from 1011 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Let's proceed to step 9:
2240 divided by 787 is 2 with a remainder of 666.
Record the quotient 2 as the next digit in the result. 
Result so far: 99911.2
The remainder is 666 after subtracting 1574 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

Moving on to step 10:
6660 divided by 787 is 8 with a remainder of 364.
Record the quotient 8 as the next digit in the result. 
Result so far: 99911.28
The remainder is 364 after subtracting 6296 from 6660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Let's proceed to step 11:
787 goes into 3640 4 times with a remainder of 492.
Use 4 as the next digit of our solution. 
Result so far: 99911.284
The remainder is 492 after subtracting 3148 from 3640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

On to step 12:
4920 divided by 787 is 6 with a remainder of 198.
The next digit of our result is 6. 
Result so far: 99911.2846
Subtracting 4722 from 4920 leaves us with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

On to step 13:
When dividing 1980 by 787, we get 2 with a remainder of 406.
The number 2 becomes the next digit in our result. 
Result so far: 99911.28462
Deduct 1574 from 1980 and we're left with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Moving on to step 14:
The number 787 fits into 4060 5 times, leaving a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 99911.284625
If we subtract 3935 from 4060, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Moving on to step 15:
1250 divided by 787 is 1 with a remainder of 463.
The number 1 becomes the next digit in our result. 
Result so far: 99911.2846251
If we subtract 787 from 1250, we get 463.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Step 16:
787 goes into 4630 5 times with a remainder of 695.
Record the quotient 5 as the next digit in the result. 
Result so far: 99911.28462515
If we subtract 3935 from 4630, we get 695.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6950, and continue the process.

Our division results in 99911.28462515 with a remaining 6.95e-07.