81155961 ÷ 786 
The aim is to understand the frequency of 786 in 81155961.

Moving on to step 1:
If we divide 8 by 786, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 786

Let's proceed to step 2:
The number 786 fits into 81 0 times, leaving a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Grab the next digit (1) from the dividend, add it to 81, then carry on: 811 / 786

Advancing to step 3:
When dividing 811 by 786, we get 1 with a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 786 from 811 to get 25.
Grab the next digit (5) from the dividend, add it to 25, then carry on: 255 / 786

On to step 4:
255 divided by 786 is 0 with a remainder of 255.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 255 after subtracting 0 from 255.
Bring next digit (5) of the dividend behind the 255 and repeat the process: 2555 / 786

On to step 5:
786 can be fit into 2555 3 times, resulting in a remainder of 197.
Write down 3 as next digit of the result. 
Result so far: 103.0
Subtracting 2358 from 2555 leaves us with 197.
Append the next digit (9) from the dividend to 197 and continue with: 1979 / 786

Advancing to step 6:
When dividing 1979 by 786, we get 2 with a remainder of 407.
Put 2 as the next digit of the answer. 
Result so far: 1032.0
If we take 1572 away from 1979, we end up with 407.
Grab the next digit (6) from the dividend, add it to 407, then carry on: 4076 / 786

Moving on to step 7:
If we divide 4076 by 786, we get 5 and a remainder of 146.
Record the quotient 5 as the next digit in the result. 
Result so far: 10325.0
Deduct 3930 from 4076 and we're left with 146.
Fetch the next digit (1) from the dividend, attach it to 146 and continue: 1461 / 786

Advancing to step 8:
1461 divided by 786 is 1 with a remainder of 675.
The next digit of our result is 1. 
Result so far: 103251.0
If we subtract 786 from 1461, we get 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

Let's proceed to step 9:
If we divide 6750 by 786, we get 8 and a remainder of 462.
The next digit of our result is 8. 
Result so far: 103251.8
If we take 6288 away from 6750, we end up with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Let's proceed to step 10:
786 can be fit into 4620 5 times, resulting in a remainder of 690.
The next digit of our result is 5. 
Result so far: 103251.85
Subtract 3930 from 4620 to get 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

Advancing to step 11:
When dividing 6900 by 786, we get 8 with a remainder of 612.
Use 8 as the next digit of our solution. 
Result so far: 103251.858
If we subtract 6288 from 6900, we get 612.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6120, and continue the process.

Going ahead to step 12:
If we divide 6120 by 786, we get 7 and a remainder of 618.
Write down 7 as next digit of the result. 
Result so far: 103251.8587
The remainder is 618 after subtracting 5502 from 6120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6180, and continue the process.

On to step 13:
If we divide 6180 by 786, we get 7 and a remainder of 678.
Record the quotient 7 as the next digit in the result. 
Result so far: 103251.85877
Subtract 5502 from 6180 to get 678.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6780, and continue the process.

After the division, we end up with 103251.85877 and a remainder of 0.000678.