13839145 divided by 948 
The aim is to understand the frequency of 948 in 13839145.

Moving on to step 1:
948 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 948

Going ahead to step 2:
948 can be fit into 13 0 times, resulting in a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 948

Going ahead to step 3:
When dividing 138 by 948, we get 0 with a remainder of 138.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 138 leaves us with 138.
Fetch the next digit (3) from the dividend, attach it to 138 and continue: 1383 / 948

Moving on to step 4:
When dividing 1383 by 948, we get 1 with a remainder of 435.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 948 from 1383 and we're left with 435.
Take the next digit (9) from the dividend and append it to 435, then repeat: 4359 / 948

Moving on to step 5:
948 goes into 4359 4 times with a remainder of 567.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtract 3792 from 4359 to get 567.
Bring next digit (1) of the dividend behind the 567 and repeat the process: 5671 / 948

Advancing to step 6:
948 goes into 5671 5 times with a remainder of 931.
The number 5 becomes the next digit in our result. 
Result so far: 145.0
Subtract 4740 from 5671 to get 931.
Fetch the next digit (4) from the dividend, attach it to 931 and continue: 9314 / 948

Advancing to step 7:
948 can be fit into 9314 9 times, resulting in a remainder of 782.
The next digit of our result is 9. 
Result so far: 1459.0
Subtract 8532 from 9314 to get 782.
Include the next digit (5) from the dividend after 782, then repeat: 7825 / 948

Step 8:
948 can be fit into 7825 8 times, resulting in a remainder of 241.
Use 8 as the next digit of our solution. 
Result so far: 14598.0
Subtracting 7584 from 7825 leaves us with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Step 9:
948 goes into 2410 2 times with a remainder of 514.
The number 2 becomes the next digit in our result. 
Result so far: 14598.2
Deduct 1896 from 2410 and we're left with 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

Moving on to step 10:
If we divide 5140 by 948, we get 5 and a remainder of 400.
Write down 5 as next digit of the result. 
Result so far: 14598.25
Deduct 4740 from 5140 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 11:
When dividing 4000 by 948, we get 4 with a remainder of 208.
Use 4 as the next digit of our solution. 
Result so far: 14598.254
If we subtract 3792 from 4000, we get 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

On to step 12:
2080 divided by 948 is 2 with a remainder of 184.
Write down 2 as next digit of the result. 
Result so far: 14598.2542
The remainder is 184 after subtracting 1896 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 13:
The number 948 fits into 1840 1 times, leaving a remainder of 892.
The number 1 becomes the next digit in our result. 
Result so far: 14598.25421
Deduct 948 from 1840 and we're left with 892.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8920, and continue the process.

Let's proceed to step 14:
The number 948 fits into 8920 9 times, leaving a remainder of 388.
Put 9 as the next digit of the answer. 
Result so far: 14598.254219
If we subtract 8532 from 8920, we get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

On to step 15:
If we divide 3880 by 948, we get 4 and a remainder of 88.
Record the quotient 4 as the next digit in the result. 
Result so far: 14598.2542194
The remainder is 88 after subtracting 3792 from 3880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Advancing to step 16:
When dividing 880 by 948, we get 0 with a remainder of 880.
Put 0 as the next digit of the answer. 
Result so far: 14598.2542194
If we take 0 away from 880, we end up with 880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8800, and continue the process.

After the division, we end up with 14598.2542194 and a remainder of 8.8e-07.