We're dividing 12651377 by 978 
The aim is to understand the frequency of 978 in 12651377.

Advancing to step 1:
978 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 978

Advancing to step 2:
The number 978 fits into 12 0 times, leaving a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 978

On to step 3:
The number 978 fits into 126 0 times, leaving a remainder of 126.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 126, we end up with 126.
Take the next digit (5) from the dividend and append it to 126, then repeat: 1265 / 978

Going ahead to step 4:
978 goes into 1265 1 times with a remainder of 287.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 287 after subtracting 978 from 1265.
Fetch the next digit (1) from the dividend, attach it to 287 and continue: 2871 / 978

Step 5:
When dividing 2871 by 978, we get 2 with a remainder of 915.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 1956 away from 2871, we end up with 915.
Take the next digit (3) from the dividend and append it to 915, then repeat: 9153 / 978

Moving on to step 6:
When dividing 9153 by 978, we get 9 with a remainder of 351.
The next digit of our result is 9. 
Result so far: 129.0
Subtract 8802 from 9153 to get 351.
Grab the next digit (7) from the dividend, add it to 351, then carry on: 3517 / 978

Step 7:
978 can be fit into 3517 3 times, resulting in a remainder of 583.
Write down 3 as next digit of the result. 
Result so far: 1293.0
The remainder is 583 after subtracting 2934 from 3517.
Include the next digit (7) from the dividend after 583, then repeat: 5837 / 978

Going ahead to step 8:
978 can be fit into 5837 5 times, resulting in a remainder of 947.
The next digit of our result is 5. 
Result so far: 12935.0
Subtract 4890 from 5837 to get 947.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9470, and continue the process.

Moving on to step 9:
978 can be fit into 9470 9 times, resulting in a remainder of 668.
The number 9 becomes the next digit in our result. 
Result so far: 12935.9
Subtracting 8802 from 9470 leaves us with 668.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6680, and continue the process.

Step 10:
When dividing 6680 by 978, we get 6 with a remainder of 812.
Put 6 as the next digit of the answer. 
Result so far: 12935.96
The remainder is 812 after subtracting 5868 from 6680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8120, and continue the process.

On to step 11:
The number 978 fits into 8120 8 times, leaving a remainder of 296.
Record the quotient 8 as the next digit in the result. 
Result so far: 12935.968
The remainder is 296 after subtracting 7824 from 8120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Let's proceed to step 12:
When dividing 2960 by 978, we get 3 with a remainder of 26.
Record the quotient 3 as the next digit in the result. 
Result so far: 12935.9683
Subtract 2934 from 2960 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 13:
978 can be fit into 260 0 times, resulting in a remainder of 260.
Use 0 as the next digit of our solution. 
Result so far: 12935.9683
The remainder is 260 after subtracting 0 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 14:
When dividing 2600 by 978, we get 2 with a remainder of 644.
Record the quotient 2 as the next digit in the result. 
Result so far: 12935.968302
Subtract 1956 from 2600 to get 644.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

Moving on to step 15:
6440 divided by 978 is 6 with a remainder of 572.
Record the quotient 6 as the next digit in the result. 
Result so far: 12935.9683026
Subtract 5868 from 6440 to get 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

On to step 16:
978 can be fit into 5720 5 times, resulting in a remainder of 830.
Write down 5 as next digit of the result. 
Result so far: 12935.96830265
Subtract 4890 from 5720 to get 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8300, and continue the process.

Our division results in 12935.96830265 with a remaining 8.3e-07.