86464973 ÷ 691 
Let's see how many times 691 fits into 86464973.

Moving on to step 1:
691 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 691

Moving on to step 2:
86 divided by 691 is 0 with a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Grab the next digit (4) from the dividend, add it to 86, then carry on: 864 / 691

On to step 3:
The number 691 fits into 864 1 times, leaving a remainder of 173.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 691 from 864 and we're left with 173.
Include the next digit (6) from the dividend after 173, then repeat: 1736 / 691

Moving on to step 4:
When dividing 1736 by 691, we get 2 with a remainder of 354.
The next digit of our result is 2. 
Result so far: 12.0
Deduct 1382 from 1736 and we're left with 354.
Grab the next digit (4) from the dividend, add it to 354, then carry on: 3544 / 691

Advancing to step 5:
691 goes into 3544 5 times with a remainder of 89.
Record the quotient 5 as the next digit in the result. 
Result so far: 125.0
Subtracting 3455 from 3544 leaves us with 89.
Bring next digit (9) of the dividend behind the 89 and repeat the process: 899 / 691

Moving on to step 6:
When dividing 899 by 691, we get 1 with a remainder of 208.
Record the quotient 1 as the next digit in the result. 
Result so far: 1251.0
Deduct 691 from 899 and we're left with 208.
Bring next digit (7) of the dividend behind the 208 and repeat the process: 2087 / 691

Step 7:
When dividing 2087 by 691, we get 3 with a remainder of 14.
The next digit of our result is 3. 
Result so far: 12513.0
If we subtract 2073 from 2087, we get 14.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 691

On to step 8:
If we divide 143 by 691, we get 0 and a remainder of 143.
Write down 0 as next digit of the result. 
Result so far: 125130.0
Deduct 0 from 143 and we're left with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Let's proceed to step 9:
691 goes into 1430 2 times with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 125130.2
The remainder is 48 after subtracting 1382 from 1430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
The number 691 fits into 480 0 times, leaving a remainder of 480.
Record the quotient 0 as the next digit in the result. 
Result so far: 125130.2
If we subtract 0 from 480, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 11:
When dividing 4800 by 691, we get 6 with a remainder of 654.
The number 6 becomes the next digit in our result. 
Result so far: 125130.206
The remainder is 654 after subtracting 4146 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

Moving on to step 12:
When dividing 6540 by 691, we get 9 with a remainder of 321.
The next digit of our result is 9. 
Result so far: 125130.2069
Subtracting 6219 from 6540 leaves us with 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

On to step 13:
When dividing 3210 by 691, we get 4 with a remainder of 446.
Write down 4 as next digit of the result. 
Result so far: 125130.20694
Subtract 2764 from 3210 to get 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Let's proceed to step 14:
691 can be fit into 4460 6 times, resulting in a remainder of 314.
Put 6 as the next digit of the answer. 
Result so far: 125130.206946
Deduct 4146 from 4460 and we're left with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

On to step 15:
691 goes into 3140 4 times with a remainder of 376.
The number 4 becomes the next digit in our result. 
Result so far: 125130.2069464
Subtracting 2764 from 3140 leaves us with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Step 16:
If we divide 3760 by 691, we get 5 and a remainder of 305.
Put 5 as the next digit of the answer. 
Result so far: 125130.20694645
Deduct 3455 from 3760 and we're left with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

After the division, we end up with 125130.20694645 and a remainder of 3.05e-07.