We look at the division of 37121980 by 79 
The aim is to understand the frequency of 79 in 37121980.

Moving on to step 1:
When dividing 3 by 79, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 79

Let's proceed to step 2:
37 divided by 79 is 0 with a remainder of 37.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 37 and we're left with 37.
Fetch the next digit (1) from the dividend, attach it to 37 and continue: 371 / 79

Moving on to step 3:
The number 79 fits into 371 4 times, leaving a remainder of 55.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 316 from 371 to get 55.
Fetch the next digit (2) from the dividend, attach it to 55 and continue: 552 / 79

Step 4:
552 divided by 79 is 6 with a remainder of 78.
The next digit of our result is 6. 
Result so far: 46.0
Subtracting 474 from 552 leaves us with 78.
Take the next digit (1) from the dividend and append it to 78, then repeat: 781 / 79

Step 5:
79 can be fit into 781 9 times, resulting in a remainder of 70.
The next digit of our result is 9. 
Result so far: 469.0
If we take 711 away from 781, we end up with 70.
Take the next digit (9) from the dividend and append it to 70, then repeat: 709 / 79

Moving on to step 6:
The number 79 fits into 709 8 times, leaving a remainder of 77.
Put 8 as the next digit of the answer. 
Result so far: 4698.0
Subtract 632 from 709 to get 77.
Bring next digit (8) of the dividend behind the 77 and repeat the process: 778 / 79

Let's proceed to step 7:
When dividing 778 by 79, we get 9 with a remainder of 67.
Write down 9 as next digit of the result. 
Result so far: 46989.0
If we subtract 711 from 778, we get 67.
Take the next digit (0) from the dividend and append it to 67, then repeat: 670 / 79

Advancing to step 8:
If we divide 670 by 79, we get 8 and a remainder of 38.
Use 8 as the next digit of our solution. 
Result so far: 469898.0
If we subtract 632 from 670, we get 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 9:
If we divide 380 by 79, we get 4 and a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 469898.4
Subtract 316 from 380 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 10:
79 can be fit into 640 8 times, resulting in a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 469898.48
Deduct 632 from 640 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
79 can be fit into 80 1 times, resulting in a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 469898.481
If we subtract 79 from 80, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 12:
If we divide 10 by 79, we get 0 and a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 469898.481
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 13:
The number 79 fits into 100 1 times, leaving a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 469898.48101
The remainder is 21 after subtracting 79 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 14:
79 goes into 210 2 times with a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 469898.481012
Subtract 158 from 210 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.

On to step 15:
79 goes into 520 6 times with a remainder of 46.
Put 6 as the next digit of the answer. 
Result so far: 469898.4810126
Deduct 474 from 520 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 16:
When dividing 460 by 79, we get 5 with a remainder of 65.
The next digit of our result is 5. 
Result so far: 469898.48101265
The remainder is 65 after subtracting 395 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final result is 469898.48101265 with a remainder of 6.5e-08.