We're dividing 86401154 by 711 
The aim is to understand the frequency of 711 in 86401154.

Let's proceed to step 1:
If we divide 8 by 711, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 711

Moving on to step 2:
86 divided by 711 is 0 with a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Fetch the next digit (4) from the dividend, attach it to 86 and continue: 864 / 711

Step 3:
864 divided by 711 is 1 with a remainder of 153.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 711 from 864 and we're left with 153.
Take the next digit (0) from the dividend and append it to 153, then repeat: 1530 / 711

On to step 4:
When dividing 1530 by 711, we get 2 with a remainder of 108.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 108 after subtracting 1422 from 1530.
Take the next digit (1) from the dividend and append it to 108, then repeat: 1081 / 711

On to step 5:
If we divide 1081 by 711, we get 1 and a remainder of 370.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
Subtract 711 from 1081 to get 370.
Take the next digit (1) from the dividend and append it to 370, then repeat: 3701 / 711

Going ahead to step 6:
The number 711 fits into 3701 5 times, leaving a remainder of 146.
The number 5 becomes the next digit in our result. 
Result so far: 1215.0
The remainder is 146 after subtracting 3555 from 3701.
Grab the next digit (5) from the dividend, add it to 146, then carry on: 1465 / 711

Moving on to step 7:
711 goes into 1465 2 times with a remainder of 43.
The number 2 becomes the next digit in our result. 
Result so far: 12152.0
If we subtract 1422 from 1465, we get 43.
Append the next digit (4) from the dividend to 43 and continue with: 434 / 711

Step 8:
711 can be fit into 434 0 times, resulting in a remainder of 434.
The number 0 becomes the next digit in our result. 
Result so far: 121520.0
Subtracting 0 from 434 leaves us with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Step 9:
4340 divided by 711 is 6 with a remainder of 74.
Put 6 as the next digit of the answer. 
Result so far: 121520.6
If we subtract 4266 from 4340, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 10:
740 divided by 711 is 1 with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 121520.61
Deduct 711 from 740 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 11:
711 can be fit into 290 0 times, resulting in a remainder of 290.
Write down 0 as next digit of the result. 
Result so far: 121520.61
If we subtract 0 from 290, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Step 12:
711 goes into 2900 4 times with a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 121520.6104
If we take 2844 away from 2900, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 13:
The number 711 fits into 560 0 times, leaving a remainder of 560.
Write down 0 as next digit of the result. 
Result so far: 121520.6104
The remainder is 560 after subtracting 0 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 14:
The number 711 fits into 5600 7 times, leaving a remainder of 623.
Put 7 as the next digit of the answer. 
Result so far: 121520.610407
The remainder is 623 after subtracting 4977 from 5600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6230, and continue the process.

Advancing to step 15:
When dividing 6230 by 711, we get 8 with a remainder of 542.
Use 8 as the next digit of our solution. 
Result so far: 121520.6104078
If we take 5688 away from 6230, we end up with 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Advancing to step 16:
711 can be fit into 5420 7 times, resulting in a remainder of 443.
The next digit of our result is 7. 
Result so far: 121520.61040787
If we subtract 4977 from 5420, we get 443.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4430, and continue the process.

After the division, we end up with 121520.61040787 and a remainder of 4.43e-07.