581881 divided by 78 
The aim is to understand the frequency of 78 in 581881.

Moving on to step 1:
78 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 78

Going ahead to step 2:
The number 78 fits into 58 0 times, leaving a remainder of 58.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 58, we get 58.
Fetch the next digit (1) from the dividend, attach it to 58 and continue: 581 / 78

Moving on to step 3:
When dividing 581 by 78, we get 7 with a remainder of 35.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 546 away from 581, we end up with 35.
Grab the next digit (8) from the dividend, add it to 35, then carry on: 358 / 78

Step 4:
358 divided by 78 is 4 with a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 74.0
If we take 312 away from 358, we end up with 46.
Include the next digit (8) from the dividend after 46, then repeat: 468 / 78

Advancing to step 5:
When dividing 468 by 78, we get 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 746.0
If we subtract 468 from 468, we get 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 78

Going ahead to step 6:
The number 78 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 7460.0
If we subtract 0 from 1, 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.

Step 7:
78 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 7460.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
The number 78 fits into 100 1 times, leaving a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 7460.01
Subtracting 78 from 100 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 9:
78 can be fit into 220 2 times, resulting in a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 7460.012
Deduct 156 from 220 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 10:
When dividing 640 by 78, we get 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 7460.0128
If we take 624 away from 640, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
If we divide 160 by 78, we get 2 and a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 7460.01282
Subtract 156 from 160 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 12:
The number 78 fits into 40 0 times, leaving a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 7460.01282
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 13:
78 goes into 400 5 times with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 7460.0128205
If we subtract 390 from 400, we 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.

Step 14:
If we divide 100 by 78, we get 1 and a remainder of 22.
The next digit of our result is 1. 
Result so far: 7460.01282051
Subtract 78 from 100 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The quotient of the division is 7460.01282051, and the remainder is 2.2e-08.