98458019 ÷ 786 
The aim is to understand the frequency of 786 in 98458019.

Advancing to step 1:
If we divide 9 by 786, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 786

Advancing to step 2:
786 goes into 98 0 times with a remainder of 98.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 98, we end up with 98.
Fetch the next digit (4) from the dividend, attach it to 98 and continue: 984 / 786

Let's proceed to step 3:
When dividing 984 by 786, we get 1 with a remainder of 198.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 786 from 984, we get 198.
Fetch the next digit (5) from the dividend, attach it to 198 and continue: 1985 / 786

On to step 4:
786 can be fit into 1985 2 times, resulting in a remainder of 413.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 1572 away from 1985, we end up with 413.
Grab the next digit (8) from the dividend, add it to 413, then carry on: 4138 / 786

Step 5:
The number 786 fits into 4138 5 times, leaving a remainder of 208.
Write down 5 as next digit of the result. 
Result so far: 125.0
Subtracting 3930 from 4138 leaves us with 208.
Append the next digit (0) from the dividend to 208 and continue with: 2080 / 786

On to step 6:
The number 786 fits into 2080 2 times, leaving a remainder of 508.
The number 2 becomes the next digit in our result. 
Result so far: 1252.0
Subtract 1572 from 2080 to get 508.
Grab the next digit (1) from the dividend, add it to 508, then carry on: 5081 / 786

Advancing to step 7:
The number 786 fits into 5081 6 times, leaving a remainder of 365.
Use 6 as the next digit of our solution. 
Result so far: 12526.0
Subtracting 4716 from 5081 leaves us with 365.
Take the next digit (9) from the dividend and append it to 365, then repeat: 3659 / 786

Step 8:
786 goes into 3659 4 times with a remainder of 515.
The number 4 becomes the next digit in our result. 
Result so far: 125264.0
Subtract 3144 from 3659 to get 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Let's proceed to step 9:
786 can be fit into 5150 6 times, resulting in a remainder of 434.
Record the quotient 6 as the next digit in the result. 
Result so far: 125264.6
The remainder is 434 after subtracting 4716 from 5150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Let's proceed to step 10:
When dividing 4340 by 786, we get 5 with a remainder of 410.
The number 5 becomes the next digit in our result. 
Result so far: 125264.65
If we subtract 3930 from 4340, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

On to step 11:
4100 divided by 786 is 5 with a remainder of 170.
Record the quotient 5 as the next digit in the result. 
Result so far: 125264.655
If we take 3930 away from 4100, we end up with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

The final result is 125264.655 with a remainder of 0.017.