We look at the division of 78185284 by 650 
The aim is to understand the frequency of 650 in 78185284.

On to step 1:
When dividing 7 by 650, we get 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 650

Advancing to step 2:
The number 650 fits into 78 0 times, leaving a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Bring next digit (1) of the dividend behind the 78 and repeat the process: 781 / 650

Advancing to step 3:
781 divided by 650 is 1 with a remainder of 131.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 650 from 781 leaves us with 131.
Append the next digit (8) from the dividend to 131 and continue with: 1318 / 650

On to step 4:
The number 650 fits into 1318 2 times, leaving a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 1300 from 1318 and we're left with 18.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 650

Going ahead to step 5:
185 divided by 650 is 0 with a remainder of 185.
Write down 0 as next digit of the result. 
Result so far: 120.0
Subtract 0 from 185 to get 185.
Take the next digit (2) from the dividend and append it to 185, then repeat: 1852 / 650

Step 6:
650 goes into 1852 2 times with a remainder of 552.
Write down 2 as next digit of the result. 
Result so far: 1202.0
If we take 1300 away from 1852, we end up with 552.
Bring next digit (8) of the dividend behind the 552 and repeat the process: 5528 / 650

Moving on to step 7:
5528 divided by 650 is 8 with a remainder of 328.
The next digit of our result is 8. 
Result so far: 12028.0
Deduct 5200 from 5528 and we're left with 328.
Include the next digit (4) from the dividend after 328, then repeat: 3284 / 650

Going ahead to step 8:
650 goes into 3284 5 times with a remainder of 34.
Record the quotient 5 as the next digit in the result. 
Result so far: 120285.0
Subtracting 3250 from 3284 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 9:
650 goes into 340 0 times with a remainder of 340.
The next digit of our result is 0. 
Result so far: 120285.0
If we take 0 away from 340, 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.

Step 10:
3400 divided by 650 is 5 with a remainder of 150.
The number 5 becomes the next digit in our result. 
Result so far: 120285.05
If we take 3250 away from 3400, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 11:
650 goes into 1500 2 times with a remainder of 200.
The next digit of our result is 2. 
Result so far: 120285.052
Subtract 1300 from 1500 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 12:
If we divide 2000 by 650, we get 3 and a remainder of 50.
Record the quotient 3 as the next digit in the result. 
Result so far: 120285.0523
If we take 1950 away from 2000, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 13:
650 goes into 500 0 times with a remainder of 500.
The number 0 becomes the next digit in our result. 
Result so far: 120285.0523
Deduct 0 from 500 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

On to step 14:
650 can be fit into 5000 7 times, resulting in a remainder of 450.
Put 7 as the next digit of the answer. 
Result so far: 120285.052307
Deduct 4550 from 5000 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Let's proceed to step 15:
650 goes into 4500 6 times with a remainder of 600.
The number 6 becomes the next digit in our result. 
Result so far: 120285.0523076
The remainder is 600 after subtracting 3900 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 16:
When dividing 6000 by 650, we get 9 with a remainder of 150.
The next digit of our result is 9. 
Result so far: 120285.05230769
The remainder is 150 after subtracting 5850 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

After the division, we end up with 120285.05230769 and a remainder of 1.5e-07.