We look at the division of 78028661 by 710 
The aim is to understand the frequency of 710 in 78028661.

Going ahead to step 1:
If we divide 7 by 710, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 710

On to step 2:
710 can be fit into 78 0 times, resulting in a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Bring next digit (0) of the dividend behind the 78 and repeat the process: 780 / 710

Moving on to step 3:
When dividing 780 by 710, we get 1 with a remainder of 70.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 710 from 780, we get 70.
Include the next digit (2) from the dividend after 70, then repeat: 702 / 710

Advancing to step 4:
When dividing 702 by 710, we get 0 with a remainder of 702.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 702 after subtracting 0 from 702.
Grab the next digit (8) from the dividend, add it to 702, then carry on: 7028 / 710

Moving on to step 5:
710 can be fit into 7028 9 times, resulting in a remainder of 638.
The next digit of our result is 9. 
Result so far: 109.0
Subtracting 6390 from 7028 leaves us with 638.
Include the next digit (6) from the dividend after 638, then repeat: 6386 / 710

Step 6:
If we divide 6386 by 710, we get 8 and a remainder of 706.
Use 8 as the next digit of our solution. 
Result so far: 1098.0
If we take 5680 away from 6386, we end up with 706.
Include the next digit (6) from the dividend after 706, then repeat: 7066 / 710

Going ahead to step 7:
If we divide 7066 by 710, we get 9 and a remainder of 676.
Write down 9 as next digit of the result. 
Result so far: 10989.0
The remainder is 676 after subtracting 6390 from 7066.
Grab the next digit (1) from the dividend, add it to 676, then carry on: 6761 / 710

Step 8:
710 goes into 6761 9 times with a remainder of 371.
Record the quotient 9 as the next digit in the result. 
Result so far: 109899.0
Subtracting 6390 from 6761 leaves us with 371.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

Going ahead to step 9:
710 goes into 3710 5 times with a remainder of 160.
Record the quotient 5 as the next digit in the result. 
Result so far: 109899.5
If we take 3550 away from 3710, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 10:
1600 divided by 710 is 2 with a remainder of 180.
Write down 2 as next digit of the result. 
Result so far: 109899.52
Subtracting 1420 from 1600 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Let's proceed to step 11:
The number 710 fits into 1800 2 times, leaving a remainder of 380.
The number 2 becomes the next digit in our result. 
Result so far: 109899.522
If we subtract 1420 from 1800, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

The final result is 109899.522 with a remainder of 0.038.