We look at the division of 8477660 by 126 
The aim is to understand the frequency of 126 in 8477660.

Step 1:
When dividing 8 by 126, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 126

Advancing to step 2:
When dividing 84 by 126, we get 0 with a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 84 leaves us with 84.
Fetch the next digit (7) from the dividend, attach it to 84 and continue: 847 / 126

Advancing to step 3:
847 divided by 126 is 6 with a remainder of 91.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 756 from 847 leaves us with 91.
Take the next digit (7) from the dividend and append it to 91, then repeat: 917 / 126

Advancing to step 4:
917 divided by 126 is 7 with a remainder of 35.
The number 7 becomes the next digit in our result. 
Result so far: 67.0
If we subtract 882 from 917, we get 35.
Grab the next digit (6) from the dividend, add it to 35, then carry on: 356 / 126

On to step 5:
126 can be fit into 356 2 times, resulting in a remainder of 104.
Write down 2 as next digit of the result. 
Result so far: 672.0
Deduct 252 from 356 and we're left with 104.
Append the next digit (6) from the dividend to 104 and continue with: 1046 / 126

Moving on to step 6:
126 can be fit into 1046 8 times, resulting in a remainder of 38.
Put 8 as the next digit of the answer. 
Result so far: 6728.0
If we subtract 1008 from 1046, we get 38.
Grab the next digit (0) from the dividend, add it to 38, then carry on: 380 / 126

Going ahead to step 7:
380 divided by 126 is 3 with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 67283.0
Subtracting 378 from 380 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
20 divided by 126 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 67283.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
When dividing 200 by 126, we get 1 with a remainder of 74.
The next digit of our result is 1. 
Result so far: 67283.01
Subtract 126 from 200 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 10:
126 goes into 740 5 times with a remainder of 110.
Put 5 as the next digit of the answer. 
Result so far: 67283.015
Subtract 630 from 740 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 11:
When dividing 1100 by 126, we get 8 with a remainder of 92.
Put 8 as the next digit of the answer. 
Result so far: 67283.0158
Subtract 1008 from 1100 to get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 12:
126 can be fit into 920 7 times, resulting in a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 67283.01587
Deduct 882 from 920 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 13:
The number 126 fits into 380 3 times, leaving a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 67283.015873
If we take 378 away from 380, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 14:
126 goes into 20 0 times with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 67283.015873
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 15:
126 goes into 200 1 times with a remainder of 74.
Use 1 as the next digit of our solution. 
Result so far: 67283.01587301
Deduct 126 from 200 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

After the division, we end up with 67283.01587301 and a remainder of 7.4e-08.