We're dividing 137342 by 78 
The aim is to understand the frequency of 78 in 137342.

Let's proceed to step 1:
When dividing 1 by 78, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 78

Let's proceed to step 2:
13 divided by 78 is 0 with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Grab the next digit (7) from the dividend, add it to 13, then carry on: 137 / 78

Moving on to step 3:
78 goes into 137 1 times with a remainder of 59.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 78 from 137 to get 59.
Bring next digit (3) of the dividend behind the 59 and repeat the process: 593 / 78

Let's proceed to step 4:
If we divide 593 by 78, we get 7 and a remainder of 47.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we subtract 546 from 593, we get 47.
Grab the next digit (4) from the dividend, add it to 47, then carry on: 474 / 78

Step 5:
When dividing 474 by 78, we get 6 with a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 176.0
Subtract 468 from 474 to get 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 78

Step 6:
The number 78 fits into 62 0 times, leaving a remainder of 62.
Write down 0 as next digit of the result. 
Result so far: 1760.0
Subtracting 0 from 62 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 7:
78 can be fit into 620 7 times, resulting in a remainder of 74.
The next digit of our result is 7. 
Result so far: 1760.7
The remainder is 74 after subtracting 546 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 8:
740 divided by 78 is 9 with a remainder of 38.
Put 9 as the next digit of the answer. 
Result so far: 1760.79
If we take 702 away from 740, we end up 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 9:
78 can be fit into 380 4 times, resulting in a remainder of 68.
Put 4 as the next digit of the answer. 
Result so far: 1760.794
Subtracting 312 from 380 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 10:
680 divided by 78 is 8 with a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 1760.7948
Subtract 624 from 680 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 11:
560 divided by 78 is 7 with a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 1760.79487
Subtracting 546 from 560 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 12:
78 goes into 140 1 times with a remainder of 62.
Use 1 as the next digit of our solution. 
Result so far: 1760.794871
Deduct 78 from 140 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 13:
620 divided by 78 is 7 with a remainder of 74.
Write down 7 as next digit of the result. 
Result so far: 1760.7948717
If we take 546 away from 620, we end up 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.

Going ahead to step 14:
If we divide 740 by 78, we get 9 and a remainder of 38.
The next digit of our result is 9. 
Result so far: 1760.79487179
Deduct 702 from 740 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.

The final outcome is 1760.79487179, with a leftover of 3.8e-08.