We're dividing 78215545 by 606 
The aim is to understand the frequency of 606 in 78215545.

Moving on to step 1:
606 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 606

Going ahead to step 2:
When dividing 78 by 606, we get 0 with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Grab the next digit (2) from the dividend, add it to 78, then carry on: 782 / 606

Going ahead to step 3:
When dividing 782 by 606, we get 1 with a remainder of 176.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 606 from 782, we get 176.
Include the next digit (1) from the dividend after 176, then repeat: 1761 / 606

On to step 4:
606 goes into 1761 2 times with a remainder of 549.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 1212 from 1761 leaves us with 549.
Take the next digit (5) from the dividend and append it to 549, then repeat: 5495 / 606

Going ahead to step 5:
606 goes into 5495 9 times with a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 129.0
The remainder is 41 after subtracting 5454 from 5495.
Take the next digit (5) from the dividend and append it to 41, then repeat: 415 / 606

On to step 6:
606 goes into 415 0 times with a remainder of 415.
The number 0 becomes the next digit in our result. 
Result so far: 1290.0
The remainder is 415 after subtracting 0 from 415.
Take the next digit (4) from the dividend and append it to 415, then repeat: 4154 / 606

Let's proceed to step 7:
606 goes into 4154 6 times with a remainder of 518.
Use 6 as the next digit of our solution. 
Result so far: 12906.0
The remainder is 518 after subtracting 3636 from 4154.
Take the next digit (5) from the dividend and append it to 518, then repeat: 5185 / 606

Going ahead to step 8:
The number 606 fits into 5185 8 times, leaving a remainder of 337.
Use 8 as the next digit of our solution. 
Result so far: 129068.0
Deduct 4848 from 5185 and we're left with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Advancing to step 9:
If we divide 3370 by 606, we get 5 and a remainder of 340.
Record the quotient 5 as the next digit in the result. 
Result so far: 129068.5
If we take 3030 away from 3370, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 10:
3400 divided by 606 is 5 with a remainder of 370.
The number 5 becomes the next digit in our result. 
Result so far: 129068.55
If we take 3030 away from 3400, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Our division results in 129068.55 with a remaining 0.37.