We look at the division of 1345389 by 630 
The aim is to understand the frequency of 630 in 1345389.

Let's proceed to step 1:
630 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 630

Advancing to step 2:
13 divided by 630 is 0 with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Bring next digit (4) of the dividend behind the 13 and repeat the process: 134 / 630

Moving on to step 3:
The number 630 fits into 134 0 times, leaving a remainder of 134.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 134 after subtracting 0 from 134.
Fetch the next digit (5) from the dividend, attach it to 134 and continue: 1345 / 630

Advancing to step 4:
The number 630 fits into 1345 2 times, leaving a remainder of 85.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 1260 from 1345 and we're left with 85.
Take the next digit (3) from the dividend and append it to 85, then repeat: 853 / 630

Going ahead to step 5:
When dividing 853 by 630, we get 1 with a remainder of 223.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtract 630 from 853 to get 223.
Grab the next digit (8) from the dividend, add it to 223, then carry on: 2238 / 630

On to step 6:
630 goes into 2238 3 times with a remainder of 348.
The number 3 becomes the next digit in our result. 
Result so far: 213.0
Subtracting 1890 from 2238 leaves us with 348.
Append the next digit (9) from the dividend to 348 and continue with: 3489 / 630

On to step 7:
630 can be fit into 3489 5 times, resulting in a remainder of 339.
The number 5 becomes the next digit in our result. 
Result so far: 2135.0
Subtracting 3150 from 3489 leaves us with 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Going ahead to step 8:
630 goes into 3390 5 times with a remainder of 240.
Record the quotient 5 as the next digit in the result. 
Result so far: 2135.5
If we take 3150 away from 3390, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 9:
630 goes into 2400 3 times with a remainder of 510.
The next digit of our result is 3. 
Result so far: 2135.53
If we take 1890 away from 2400, we end up with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 10:
630 can be fit into 5100 8 times, resulting in a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 2135.538
If we take 5040 away from 5100, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 11:
630 can be fit into 600 0 times, resulting in a remainder of 600.
Record the quotient 0 as the next digit in the result. 
Result so far: 2135.538
Subtracting 0 from 600 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Advancing to step 12:
If we divide 6000 by 630, we get 9 and a remainder of 330.
Write down 9 as next digit of the result. 
Result so far: 2135.53809
If we take 5670 away from 6000, we end up with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

On to step 13:
When dividing 3300 by 630, we get 5 with a remainder of 150.
Record the quotient 5 as the next digit in the result. 
Result so far: 2135.538095
The remainder is 150 after subtracting 3150 from 3300.
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 14:
1500 divided by 630 is 2 with a remainder of 240.
The next digit of our result is 2. 
Result so far: 2135.5380952
Subtract 1260 from 1500 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 15:
2400 divided by 630 is 3 with a remainder of 510.
Put 3 as the next digit of the answer. 
Result so far: 2135.53809523
Subtracting 1890 from 2400 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

The final outcome is 2135.53809523, with a leftover of 5.1e-07.