We're dividing 85478048 by 390 
The aim is to understand the frequency of 390 in 85478048.

Advancing to step 1:
When dividing 8 by 390, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 390

Let's proceed to step 2:
When dividing 85 by 390, we get 0 with a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 85, we end up with 85.
Fetch the next digit (4) from the dividend, attach it to 85 and continue: 854 / 390

On to step 3:
The number 390 fits into 854 2 times, leaving a remainder of 74.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 780 from 854 and we're left with 74.
Bring next digit (7) of the dividend behind the 74 and repeat the process: 747 / 390

On to step 4:
If we divide 747 by 390, we get 1 and a remainder of 357.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Deduct 390 from 747 and we're left with 357.
Fetch the next digit (8) from the dividend, attach it to 357 and continue: 3578 / 390

On to step 5:
When dividing 3578 by 390, we get 9 with a remainder of 68.
Write down 9 as next digit of the result. 
Result so far: 219.0
The remainder is 68 after subtracting 3510 from 3578.
Take the next digit (0) from the dividend and append it to 68, then repeat: 680 / 390

On to step 6:
The number 390 fits into 680 1 times, leaving a remainder of 290.
Use 1 as the next digit of our solution. 
Result so far: 2191.0
The remainder is 290 after subtracting 390 from 680.
Append the next digit (4) from the dividend to 290 and continue with: 2904 / 390

Step 7:
If we divide 2904 by 390, we get 7 and a remainder of 174.
The number 7 becomes the next digit in our result. 
Result so far: 21917.0
If we subtract 2730 from 2904, we get 174.
Append the next digit (8) from the dividend to 174 and continue with: 1748 / 390

On to step 8:
390 can be fit into 1748 4 times, resulting in a remainder of 188.
Write down 4 as next digit of the result. 
Result so far: 219174.0
Deduct 1560 from 1748 and we're left with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

On to step 9:
If we divide 1880 by 390, we get 4 and a remainder of 320.
Record the quotient 4 as the next digit in the result. 
Result so far: 219174.4
If we take 1560 away from 1880, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 10:
When dividing 3200 by 390, we get 8 with a remainder of 80.
Put 8 as the next digit of the answer. 
Result so far: 219174.48
If we take 3120 away from 3200, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 11:
390 can be fit into 800 2 times, resulting in a remainder of 20.
The next digit of our result is 2. 
Result so far: 219174.482
If we subtract 780 from 800, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 12:
390 goes into 200 0 times with a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 219174.482
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 13:
If we divide 2000 by 390, we get 5 and a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 219174.48205
Subtracting 1950 from 2000 leaves us 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.

Moving on to step 14:
If we divide 500 by 390, we get 1 and a remainder of 110.
Write down 1 as next digit of the result. 
Result so far: 219174.482051
The remainder is 110 after subtracting 390 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 15:
390 can be fit into 1100 2 times, resulting in a remainder of 320.
The number 2 becomes the next digit in our result. 
Result so far: 219174.4820512
The remainder is 320 after subtracting 780 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 16:
The number 390 fits into 3200 8 times, leaving a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 219174.48205128
Subtract 3120 from 3200 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Our division results in 219174.48205128 with a remaining 8e-08.