86369731 ÷ 350 
We want to figure out the number of times 86369731 can be divided by 350.

Moving on to step 1:
350 can be fit into 8 0 times, resulting in 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.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 350

On to step 2:
The number 350 fits into 86 0 times, leaving a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Append the next digit (3) from the dividend to 86 and continue with: 863 / 350

Going ahead to step 3:
350 goes into 863 2 times with a remainder of 163.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 700 from 863, we get 163.
Fetch the next digit (6) from the dividend, attach it to 163 and continue: 1636 / 350

Going ahead to step 4:
The number 350 fits into 1636 4 times, leaving a remainder of 236.
Write down 4 as next digit of the result. 
Result so far: 24.0
The remainder is 236 after subtracting 1400 from 1636.
Grab the next digit (9) from the dividend, add it to 236, then carry on: 2369 / 350

Going ahead to step 5:
350 can be fit into 2369 6 times, resulting in a remainder of 269.
The next digit of our result is 6. 
Result so far: 246.0
The remainder is 269 after subtracting 2100 from 2369.
Append the next digit (7) from the dividend to 269 and continue with: 2697 / 350

Moving on to step 6:
350 goes into 2697 7 times with a remainder of 247.
The number 7 becomes the next digit in our result. 
Result so far: 2467.0
Subtract 2450 from 2697 to get 247.
Include the next digit (3) from the dividend after 247, then repeat: 2473 / 350

On to step 7:
When dividing 2473 by 350, we get 7 with a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 24677.0
If we subtract 2450 from 2473, we get 23.
Grab the next digit (1) from the dividend, add it to 23, then carry on: 231 / 350

Going ahead to step 8:
350 can be fit into 231 0 times, resulting in a remainder of 231.
The next digit of our result is 0. 
Result so far: 246770.0
Subtract 0 from 231 to get 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Step 9:
2310 divided by 350 is 6 with a remainder of 210.
The next digit of our result is 6. 
Result so far: 246770.6
The remainder is 210 after subtracting 2100 from 2310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 10:
2100 divided by 350 is 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 246770.66
The remainder is 0 after subtracting 2100 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 246770.66 with a remaining 0.0.