We look at the division of 20726939 by 157 
The aim is to understand the frequency of 157 in 20726939.

On to step 1:
157 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 157

Going ahead to step 2:
157 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Fetch the next digit (7) from the dividend, attach it to 20 and continue: 207 / 157

On to step 3:
157 can be fit into 207 1 times, resulting in a remainder of 50.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 157 from 207 to get 50.
Bring next digit (2) of the dividend behind the 50 and repeat the process: 502 / 157

Let's proceed to step 4:
The number 157 fits into 502 3 times, leaving a remainder of 31.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Deduct 471 from 502 and we're left with 31.
Take the next digit (6) from the dividend and append it to 31, then repeat: 316 / 157

Let's proceed to step 5:
The number 157 fits into 316 2 times, leaving a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 132.0
If we take 314 away from 316, we end up with 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 157

On to step 6:
The number 157 fits into 29 0 times, leaving a remainder of 29.
Write down 0 as next digit of the result. 
Result so far: 1320.0
Subtract 0 from 29 to get 29.
Fetch the next digit (3) from the dividend, attach it to 29 and continue: 293 / 157

Advancing to step 7:
When dividing 293 by 157, we get 1 with a remainder of 136.
The next digit of our result is 1. 
Result so far: 13201.0
Subtract 157 from 293 to get 136.
Fetch the next digit (9) from the dividend, attach it to 136 and continue: 1369 / 157

On to step 8:
The number 157 fits into 1369 8 times, leaving a remainder of 113.
Use 8 as the next digit of our solution. 
Result so far: 132018.0
Subtract 1256 from 1369 to get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

On to step 9:
1130 divided by 157 is 7 with a remainder of 31.
Write down 7 as next digit of the result. 
Result so far: 132018.7
The remainder is 31 after subtracting 1099 from 1130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 10:
310 divided by 157 is 1 with a remainder of 153.
Write down 1 as next digit of the result. 
Result so far: 132018.71
If we subtract 157 from 310, we get 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Moving on to step 11:
When dividing 1530 by 157, we get 9 with a remainder of 117.
Put 9 as the next digit of the answer. 
Result so far: 132018.719
If we subtract 1413 from 1530, we get 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

On to step 12:
157 goes into 1170 7 times with a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 132018.7197
Subtract 1099 from 1170 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Going ahead to step 13:
The number 157 fits into 710 4 times, leaving a remainder of 82.
The number 4 becomes the next digit in our result. 
Result so far: 132018.71974
The remainder is 82 after subtracting 628 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 14:
820 divided by 157 is 5 with a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 132018.719745
If we take 785 away from 820, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 15:
If we divide 350 by 157, we get 2 and a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 132018.7197452
If we subtract 314 from 350, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 16:
157 goes into 360 2 times with a remainder of 46.
Write down 2 as next digit of the result. 
Result so far: 132018.71974522
If we subtract 314 from 360, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The quotient of the division is 132018.71974522, and the remainder is 4.6e-08.