We look at the division of 78836605 by 971 
The aim is to understand the frequency of 971 in 78836605.

On to step 1:
If we divide 7 by 971, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 971

Step 2:
78 divided by 971 is 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Append the next digit (8) from the dividend to 78 and continue with: 788 / 971

On to step 3:
971 goes into 788 0 times with a remainder of 788.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 788, we get 788.
Take the next digit (3) from the dividend and append it to 788, then repeat: 7883 / 971

Step 4:
971 can be fit into 7883 8 times, resulting in a remainder of 115.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 7768 from 7883, we get 115.
Fetch the next digit (6) from the dividend, attach it to 115 and continue: 1156 / 971

Let's proceed to step 5:
1156 divided by 971 is 1 with a remainder of 185.
Write down 1 as next digit of the result. 
Result so far: 81.0
The remainder is 185 after subtracting 971 from 1156.
Include the next digit (6) from the dividend after 185, then repeat: 1856 / 971

Advancing to step 6:
The number 971 fits into 1856 1 times, leaving a remainder of 885.
The next digit of our result is 1. 
Result so far: 811.0
Deduct 971 from 1856 and we're left with 885.
Fetch the next digit (0) from the dividend, attach it to 885 and continue: 8850 / 971

Let's proceed to step 7:
If we divide 8850 by 971, we get 9 and a remainder of 111.
The next digit of our result is 9. 
Result so far: 8119.0
Subtract 8739 from 8850 to get 111.
Fetch the next digit (5) from the dividend, attach it to 111 and continue: 1115 / 971

On to step 8:
1115 divided by 971 is 1 with a remainder of 144.
Use 1 as the next digit of our solution. 
Result so far: 81191.0
If we subtract 971 from 1115, we get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Going ahead to step 9:
When dividing 1440 by 971, we get 1 with a remainder of 469.
Write down 1 as next digit of the result. 
Result so far: 81191.1
If we subtract 971 from 1440, we get 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Let's proceed to step 10:
971 can be fit into 4690 4 times, resulting in a remainder of 806.
Put 4 as the next digit of the answer. 
Result so far: 81191.14
If we subtract 3884 from 4690, we get 806.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

Step 11:
If we divide 8060 by 971, we get 8 and a remainder of 292.
Write down 8 as next digit of the result. 
Result so far: 81191.148
Deduct 7768 from 8060 and we're left with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Advancing to step 12:
971 goes into 2920 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 81191.1483
Subtracting 2913 from 2920 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 13:
When dividing 70 by 971, we get 0 with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 81191.1483
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 14:
The number 971 fits into 700 0 times, leaving a remainder of 700.
The next digit of our result is 0. 
Result so far: 81191.1483
If we subtract 0 from 700, we get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

The final outcome is 81191.1483, with a leftover of 7e-05.