We're dividing 52169869 by 978 
The aim is to understand the frequency of 978 in 52169869.

Let's proceed to step 1:
When dividing 5 by 978, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 978

Advancing to step 2:
When dividing 52 by 978, we get 0 with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 52, we end up with 52.
Grab the next digit (1) from the dividend, add it to 52, then carry on: 521 / 978

On to step 3:
521 divided by 978 is 0 with a remainder of 521.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 521 after subtracting 0 from 521.
Bring next digit (6) of the dividend behind the 521 and repeat the process: 5216 / 978

Advancing to step 4:
The number 978 fits into 5216 5 times, leaving a remainder of 326.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtract 4890 from 5216 to get 326.
Include the next digit (9) from the dividend after 326, then repeat: 3269 / 978

On to step 5:
If we divide 3269 by 978, we get 3 and a remainder of 335.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
Subtracting 2934 from 3269 leaves us with 335.
Grab the next digit (8) from the dividend, add it to 335, then carry on: 3358 / 978

Step 6:
The number 978 fits into 3358 3 times, leaving a remainder of 424.
The next digit of our result is 3. 
Result so far: 533.0
If we take 2934 away from 3358, we end up with 424.
Take the next digit (6) from the dividend and append it to 424, then repeat: 4246 / 978

Moving on to step 7:
978 goes into 4246 4 times with a remainder of 334.
Put 4 as the next digit of the answer. 
Result so far: 5334.0
Subtracting 3912 from 4246 leaves us with 334.
Append the next digit (9) from the dividend to 334 and continue with: 3349 / 978

On to step 8:
3349 divided by 978 is 3 with a remainder of 415.
Write down 3 as next digit of the result. 
Result so far: 53343.0
Subtract 2934 from 3349 to get 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Let's proceed to step 9:
4150 divided by 978 is 4 with a remainder of 238.
Use 4 as the next digit of our solution. 
Result so far: 53343.4
If we subtract 3912 from 4150, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 10:
The number 978 fits into 2380 2 times, leaving a remainder of 424.
Record the quotient 2 as the next digit in the result. 
Result so far: 53343.42
If we take 1956 away from 2380, we end up with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Going ahead to step 11:
978 goes into 4240 4 times with a remainder of 328.
Use 4 as the next digit of our solution. 
Result so far: 53343.424
The remainder is 328 after subtracting 3912 from 4240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Advancing to step 12:
If we divide 3280 by 978, we get 3 and a remainder of 346.
Write down 3 as next digit of the result. 
Result so far: 53343.4243
If we take 2934 away from 3280, we end up with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Step 13:
When dividing 3460 by 978, we get 3 with a remainder of 526.
The next digit of our result is 3. 
Result so far: 53343.42433
Subtracting 2934 from 3460 leaves us with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

The quotient of the division is 53343.42433, and the remainder is 0.000526.