645118 divided by 86 
We want to figure out the number of times 645118 can be divided by 86.

Advancing to step 1:
If we divide 6 by 86, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 86

Moving on to step 2:
86 goes into 64 0 times with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Bring next digit (5) of the dividend behind the 64 and repeat the process: 645 / 86

Going ahead to step 3:
86 goes into 645 7 times with a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 602 from 645 and we're left with 43.
Grab the next digit (1) from the dividend, add it to 43, then carry on: 431 / 86

Moving on to step 4:
431 divided by 86 is 5 with a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 75.0
The remainder is 1 after subtracting 430 from 431.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 86

Let's proceed to step 5:
86 goes into 11 0 times with a remainder of 11.
Put 0 as the next digit of the answer. 
Result so far: 750.0
If we subtract 0 from 11, we get 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 86

Step 6:
86 can be fit into 118 1 times, resulting in a remainder of 32.
Record the quotient 1 as the next digit in the result. 
Result so far: 7501.0
If we take 86 away from 118, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 7:
The number 86 fits into 320 3 times, leaving a remainder of 62.
Write down 3 as next digit of the result. 
Result so far: 7501.3
The remainder is 62 after subtracting 258 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 8:
620 divided by 86 is 7 with a remainder of 18.
Record the quotient 7 as the next digit in the result. 
Result so far: 7501.37
If we take 602 away from 620, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 9:
180 divided by 86 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 7501.372
Subtracting 172 from 180 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
86 can be fit into 80 0 times, resulting in a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 7501.372
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 11:
The number 86 fits into 800 9 times, leaving a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 7501.37209
Subtract 774 from 800 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 12:
260 divided by 86 is 3 with a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 7501.372093
The remainder is 2 after subtracting 258 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 13:
If we divide 20 by 86, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 7501.372093
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 14:
86 can be fit into 200 2 times, resulting in a remainder of 28.
The next digit of our result is 2. 
Result so far: 7501.37209302
The remainder is 28 after subtracting 172 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

In conclusion, the division gives 7501.37209302 with a balance of 2.8e-08.