86489449 ÷ 850 
We want to divide 86489449 by 850.

Going ahead to step 1:
The number 850 fits into 8 0 times, leaving 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 / 850

Moving on to step 2:
850 can be fit into 86 0 times, resulting in a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Include the next digit (4) from the dividend after 86, then repeat: 864 / 850

Going ahead to step 3:
The number 850 fits into 864 1 times, leaving a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 850 away from 864, we end up with 14.
Append the next digit (8) from the dividend to 14 and continue with: 148 / 850

Advancing to step 4:
850 goes into 148 0 times with a remainder of 148.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 148, we get 148.
Append the next digit (9) from the dividend to 148 and continue with: 1489 / 850

Step 5:
When dividing 1489 by 850, we get 1 with a remainder of 639.
The next digit of our result is 1. 
Result so far: 101.0
Deduct 850 from 1489 and we're left with 639.
Fetch the next digit (4) from the dividend, attach it to 639 and continue: 6394 / 850

Step 6:
850 can be fit into 6394 7 times, resulting in a remainder of 444.
Write down 7 as next digit of the result. 
Result so far: 1017.0
The remainder is 444 after subtracting 5950 from 6394.
Take the next digit (4) from the dividend and append it to 444, then repeat: 4444 / 850

Moving on to step 7:
The number 850 fits into 4444 5 times, leaving a remainder of 194.
Use 5 as the next digit of our solution. 
Result so far: 10175.0
Deduct 4250 from 4444 and we're left with 194.
Take the next digit (9) from the dividend and append it to 194, then repeat: 1949 / 850

On to step 8:
If we divide 1949 by 850, we get 2 and a remainder of 249.
Write down 2 as next digit of the result. 
Result so far: 101752.0
Subtract 1700 from 1949 to get 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Moving on to step 9:
If we divide 2490 by 850, we get 2 and a remainder of 790.
The number 2 becomes the next digit in our result. 
Result so far: 101752.2
Deduct 1700 from 2490 and we're left with 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7900, and continue the process.

On to step 10:
850 goes into 7900 9 times with a remainder of 250.
Put 9 as the next digit of the answer. 
Result so far: 101752.29
Subtracting 7650 from 7900 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Advancing to step 11:
850 goes into 2500 2 times with a remainder of 800.
Record the quotient 2 as the next digit in the result. 
Result so far: 101752.292
Subtracting 1700 from 2500 leaves us with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

On to step 12:
If we divide 8000 by 850, we get 9 and a remainder of 350.
Write down 9 as next digit of the result. 
Result so far: 101752.2929
If we subtract 7650 from 8000, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 13:
If we divide 3500 by 850, we get 4 and a remainder of 100.
The next digit of our result is 4. 
Result so far: 101752.29294
If we take 3400 away from 3500, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 14:
850 goes into 1000 1 times with a remainder of 150.
Put 1 as the next digit of the answer. 
Result so far: 101752.292941
Subtracting 850 from 1000 leaves us with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 15:
1500 divided by 850 is 1 with a remainder of 650.
The number 1 becomes the next digit in our result. 
Result so far: 101752.2929411
If we subtract 850 from 1500, we get 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

After the division, we end up with 101752.2929411 and a remainder of 6.5e-06.