We look at the division of 75492458 by 122 
The aim is to understand the frequency of 122 in 75492458.

On to step 1:
The number 122 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 122

Going ahead to step 2:
If we divide 75 by 122, we get 0 and a remainder of 75.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Bring next digit (4) of the dividend behind the 75 and repeat the process: 754 / 122

Going ahead to step 3:
If we divide 754 by 122, we get 6 and a remainder of 22.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 732 from 754 and we're left with 22.
Include the next digit (9) from the dividend after 22, then repeat: 229 / 122

Going ahead to step 4:
229 divided by 122 is 1 with a remainder of 107.
Put 1 as the next digit of the answer. 
Result so far: 61.0
If we subtract 122 from 229, we get 107.
Take the next digit (2) from the dividend and append it to 107, then repeat: 1072 / 122

Advancing to step 5:
122 can be fit into 1072 8 times, resulting in a remainder of 96.
Record the quotient 8 as the next digit in the result. 
Result so far: 618.0
If we take 976 away from 1072, we end up with 96.
Include the next digit (4) from the dividend after 96, then repeat: 964 / 122

On to step 6:
964 divided by 122 is 7 with a remainder of 110.
Put 7 as the next digit of the answer. 
Result so far: 6187.0
If we take 854 away from 964, we end up with 110.
Grab the next digit (5) from the dividend, add it to 110, then carry on: 1105 / 122

On to step 7:
122 can be fit into 1105 9 times, resulting in a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 61879.0
Subtract 1098 from 1105 to get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 122

On to step 8:
The number 122 fits into 78 0 times, leaving a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 618790.0
Deduct 0 from 78 and we're left 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.

Advancing to step 9:
When dividing 780 by 122, we get 6 with a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 618790.6
Subtract 732 from 780 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 10:
The number 122 fits into 480 3 times, leaving a remainder of 114.
Put 3 as the next digit of the answer. 
Result so far: 618790.63
If we take 366 away from 480, we end up 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.

On to step 11:
122 can be fit into 1140 9 times, resulting in a remainder of 42.
Record the quotient 9 as the next digit in the result. 
Result so far: 618790.639
The remainder is 42 after subtracting 1098 from 1140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 12:
122 can be fit into 420 3 times, resulting in a remainder of 54.
Write down 3 as next digit of the result. 
Result so far: 618790.6393
If we take 366 away from 420, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 13:
122 can be fit into 540 4 times, resulting in a remainder of 52.
Use 4 as the next digit of our solution. 
Result so far: 618790.63934
Subtract 488 from 540 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 14:
122 goes into 520 4 times with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 618790.639344
Subtract 488 from 520 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 618790.639344 with a remainder of 3.2e-06.