We look at the division of 63370912 by 578 
The aim is to understand the frequency of 578 in 63370912.

Moving on to step 1:
578 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 578

Going ahead to step 2:
578 goes into 63 0 times with a remainder of 63.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Grab the next digit (3) from the dividend, add it to 63, then carry on: 633 / 578

Advancing to step 3:
If we divide 633 by 578, we get 1 and a remainder of 55.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 55 after subtracting 578 from 633.
Fetch the next digit (7) from the dividend, attach it to 55 and continue: 557 / 578

Advancing to step 4:
578 can be fit into 557 0 times, resulting in a remainder of 557.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 557 leaves us with 557.
Fetch the next digit (0) from the dividend, attach it to 557 and continue: 5570 / 578

Advancing to step 5:
When dividing 5570 by 578, we get 9 with a remainder of 368.
The number 9 becomes the next digit in our result. 
Result so far: 109.0
If we take 5202 away from 5570, we end up with 368.
Grab the next digit (9) from the dividend, add it to 368, then carry on: 3689 / 578

Moving on to step 6:
The number 578 fits into 3689 6 times, leaving a remainder of 221.
The next digit of our result is 6. 
Result so far: 1096.0
Subtract 3468 from 3689 to get 221.
Take the next digit (1) from the dividend and append it to 221, then repeat: 2211 / 578

Step 7:
When dividing 2211 by 578, we get 3 with a remainder of 477.
Use 3 as the next digit of our solution. 
Result so far: 10963.0
Subtract 1734 from 2211 to get 477.
Bring next digit (2) of the dividend behind the 477 and repeat the process: 4772 / 578

Moving on to step 8:
4772 divided by 578 is 8 with a remainder of 148.
Write down 8 as next digit of the result. 
Result so far: 109638.0
If we subtract 4624 from 4772, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

On to step 9:
578 goes into 1480 2 times with a remainder of 324.
Use 2 as the next digit of our solution. 
Result so far: 109638.2
The remainder is 324 after subtracting 1156 from 1480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Advancing to step 10:
3240 divided by 578 is 5 with a remainder of 350.
Put 5 as the next digit of the answer. 
Result so far: 109638.25
If we take 2890 away from 3240, we end up with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Moving on to step 11:
The number 578 fits into 3500 6 times, leaving a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 109638.256
The remainder is 32 after subtracting 3468 from 3500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 12:
320 divided by 578 is 0 with a remainder of 320.
Record the quotient 0 as the next digit in the result. 
Result so far: 109638.256
The remainder is 320 after subtracting 0 from 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 13:
578 goes into 3200 5 times with a remainder of 310.
Use 5 as the next digit of our solution. 
Result so far: 109638.25605
Subtracting 2890 from 3200 leaves us with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Going ahead to step 14:
The number 578 fits into 3100 5 times, leaving a remainder of 210.
The number 5 becomes the next digit in our result. 
Result so far: 109638.256055
Deduct 2890 from 3100 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

After the division, we end up with 109638.256055 and a remainder of 2.1e-05.