Let's divide 78511560 by 126
The aim is to understand the frequency of 126 in 78511560.

Advancing to step 1:
126 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 126

Step 2:
78 divided by 126 is 0 with a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Fetch the next digit (5) from the dividend, attach it to 78 and continue: 785 / 126

Let's proceed to step 3:
785 divided by 126 is 6 with a remainder of 29.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtract 756 from 785 to get 29.
Append the next digit (1) from the dividend to 29 and continue with: 291 / 126

Going ahead to step 4:
291 divided by 126 is 2 with a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 62.0
The remainder is 39 after subtracting 252 from 291.
Grab the next digit (1) from the dividend, add it to 39, then carry on: 391 / 126

Step 5:
391 divided by 126 is 3 with a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 623.0
Subtracting 378 from 391 leaves us with 13.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 126

Advancing to step 6:
The number 126 fits into 135 1 times, leaving a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 6231.0
Subtract 126 from 135 to get 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 126

On to step 7:
96 divided by 126 is 0 with a remainder of 96.
Put 0 as the next digit of the answer. 
Result so far: 62310.0
The remainder is 96 after subtracting 0 from 96.
Grab the next digit (0) from the dividend, add it to 96, then carry on: 960 / 126

On to step 8:
The number 126 fits into 960 7 times, leaving a remainder of 78.
Record the quotient 7 as the next digit in the result. 
Result so far: 623107.0
Subtract 882 from 960 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 9:
The number 126 fits into 780 6 times, leaving a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 623107.6
If we subtract 756 from 780, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
240 divided by 126 is 1 with a remainder of 114.
Write down 1 as next digit of the result. 
Result so far: 623107.61
Subtracting 126 from 240 leaves us with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Let's proceed to step 11:
If we divide 1140 by 126, we get 9 and a remainder of 6.
The next digit of our result is 9. 
Result so far: 623107.619
Deduct 1134 from 1140 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 12:
60 divided by 126 is 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 623107.619
If we subtract 0 from 60, we get 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 13:
126 goes into 600 4 times with a remainder of 96.
The next digit of our result is 4. 
Result so far: 623107.61904
If we subtract 504 from 600, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

On to step 14:
960 divided by 126 is 7 with a remainder of 78.
The next digit of our result is 7. 
Result so far: 623107.619047
If we take 882 away from 960, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 15:
126 can be fit into 780 6 times, resulting in a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 623107.6190476
Subtract 756 from 780 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 16:
When dividing 240 by 126, we get 1 with a remainder of 114.
The number 1 becomes the next digit in our result. 
Result so far: 623107.61904761
Subtract 126 from 240 to get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

The final outcome is 623107.61904761, with a leftover of 1.14e-07.