We look at the division of 72046539 by 978 
The aim is to understand the frequency of 978 in 72046539.

Step 1:
7 divided by 978 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 978

Going ahead to step 2:
72 divided by 978 is 0 with a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 72 to get 72.
Include the next digit (0) from the dividend after 72, then repeat: 720 / 978

Let's proceed to step 3:
When dividing 720 by 978, we get 0 with a remainder of 720.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 720, we get 720.
Bring next digit (4) of the dividend behind the 720 and repeat the process: 7204 / 978

On to step 4:
7204 divided by 978 is 7 with a remainder of 358.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we take 6846 away from 7204, we end up with 358.
Include the next digit (6) from the dividend after 358, then repeat: 3586 / 978

On to step 5:
3586 divided by 978 is 3 with a remainder of 652.
Put 3 as the next digit of the answer. 
Result so far: 73.0
Subtract 2934 from 3586 to get 652.
Append the next digit (5) from the dividend to 652 and continue with: 6525 / 978

Going ahead to step 6:
If we divide 6525 by 978, we get 6 and a remainder of 657.
Write down 6 as next digit of the result. 
Result so far: 736.0
Subtracting 5868 from 6525 leaves us with 657.
Bring next digit (3) of the dividend behind the 657 and repeat the process: 6573 / 978

Going ahead to step 7:
6573 divided by 978 is 6 with a remainder of 705.
The number 6 becomes the next digit in our result. 
Result so far: 7366.0
Deduct 5868 from 6573 and we're left with 705.
Grab the next digit (9) from the dividend, add it to 705, then carry on: 7059 / 978

Let's proceed to step 8:
When dividing 7059 by 978, we get 7 with a remainder of 213.
Write down 7 as next digit of the result. 
Result so far: 73667.0
Deduct 6846 from 7059 and we're left with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Advancing to step 9:
2130 divided by 978 is 2 with a remainder of 174.
Write down 2 as next digit of the result. 
Result so far: 73667.2
Subtracting 1956 from 2130 leaves us with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Advancing to step 10:
978 can be fit into 1740 1 times, resulting in a remainder of 762.
Put 1 as the next digit of the answer. 
Result so far: 73667.21
If we subtract 978 from 1740, we get 762.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7620, and continue the process.

On to step 11:
When dividing 7620 by 978, we get 7 with a remainder of 774.
Use 7 as the next digit of our solution. 
Result so far: 73667.217
The remainder is 774 after subtracting 6846 from 7620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7740, and continue the process.

Advancing to step 12:
When dividing 7740 by 978, we get 7 with a remainder of 894.
The next digit of our result is 7. 
Result so far: 73667.2177
Subtracting 6846 from 7740 leaves us with 894.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8940, and continue the process.

The final result is 73667.2177 with a remainder of 0.00894.