86747951 ÷ 945 
The aim is to understand the frequency of 945 in 86747951.

Moving on to step 1:
945 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 945

Moving on to step 2:
The number 945 fits into 86 0 times, leaving a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Append the next digit (7) from the dividend to 86 and continue with: 867 / 945

Moving on to step 3:
945 can be fit into 867 0 times, resulting in a remainder of 867.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 867 leaves us with 867.
Grab the next digit (4) from the dividend, add it to 867, then carry on: 8674 / 945

Step 4:
If we divide 8674 by 945, we get 9 and a remainder of 169.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 8505 from 8674, we get 169.
Append the next digit (7) from the dividend to 169 and continue with: 1697 / 945

Step 5:
The number 945 fits into 1697 1 times, leaving a remainder of 752.
Use 1 as the next digit of our solution. 
Result so far: 91.0
Deduct 945 from 1697 and we're left with 752.
Take the next digit (9) from the dividend and append it to 752, then repeat: 7529 / 945

Step 6:
The number 945 fits into 7529 7 times, leaving a remainder of 914.
Write down 7 as next digit of the result. 
Result so far: 917.0
Subtract 6615 from 7529 to get 914.
Take the next digit (5) from the dividend and append it to 914, then repeat: 9145 / 945

Going ahead to step 7:
945 can be fit into 9145 9 times, resulting in a remainder of 640.
Put 9 as the next digit of the answer. 
Result so far: 9179.0
If we subtract 8505 from 9145, we get 640.
Fetch the next digit (1) from the dividend, attach it to 640 and continue: 6401 / 945

Advancing to step 8:
If we divide 6401 by 945, we get 6 and a remainder of 731.
The number 6 becomes the next digit in our result. 
Result so far: 91796.0
If we subtract 5670 from 6401, we get 731.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7310, and continue the process.

Moving on to step 9:
7310 divided by 945 is 7 with a remainder of 695.
Use 7 as the next digit of our solution. 
Result so far: 91796.7
If we take 6615 away from 7310, we end up with 695.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6950, and continue the process.

Advancing to step 10:
The number 945 fits into 6950 7 times, leaving a remainder of 335.
The next digit of our result is 7. 
Result so far: 91796.77
Subtract 6615 from 6950 to get 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

The final outcome is 91796.77, with a leftover of 0.335.