We look at the division of 86156391 by 351 
Let's see how many times 351 fits into 86156391.

Moving on to step 1:
351 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 351

Let's proceed to step 2:
86 divided by 351 is 0 with a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Include the next digit (1) from the dividend after 86, then repeat: 861 / 351

Advancing to step 3:
351 goes into 861 2 times with a remainder of 159.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 702 away from 861, we end up with 159.
Fetch the next digit (5) from the dividend, attach it to 159 and continue: 1595 / 351

Going ahead to step 4:
When dividing 1595 by 351, we get 4 with a remainder of 191.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Subtract 1404 from 1595 to get 191.
Grab the next digit (6) from the dividend, add it to 191, then carry on: 1916 / 351

Let's proceed to step 5:
1916 divided by 351 is 5 with a remainder of 161.
The number 5 becomes the next digit in our result. 
Result so far: 245.0
Subtract 1755 from 1916 to get 161.
Take the next digit (3) from the dividend and append it to 161, then repeat: 1613 / 351

Moving on to step 6:
351 can be fit into 1613 4 times, resulting in a remainder of 209.
Write down 4 as next digit of the result. 
Result so far: 2454.0
If we subtract 1404 from 1613, we get 209.
Bring next digit (9) of the dividend behind the 209 and repeat the process: 2099 / 351

Advancing to step 7:
351 can be fit into 2099 5 times, resulting in a remainder of 344.
Record the quotient 5 as the next digit in the result. 
Result so far: 24545.0
Subtract 1755 from 2099 to get 344.
Fetch the next digit (1) from the dividend, attach it to 344 and continue: 3441 / 351

Going ahead to step 8:
3441 divided by 351 is 9 with a remainder of 282.
Put 9 as the next digit of the answer. 
Result so far: 245459.0
If we take 3159 away from 3441, we end up with 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

On to step 9:
351 can be fit into 2820 8 times, resulting in a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 245459.8
If we subtract 2808 from 2820, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 10:
351 goes into 120 0 times with a remainder of 120.
Write down 0 as next digit of the result. 
Result so far: 245459.8
If we take 0 away from 120, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 11:
351 goes into 1200 3 times with a remainder of 147.
Put 3 as the next digit of the answer. 
Result so far: 245459.803
If we subtract 1053 from 1200, we get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Advancing to step 12:
When dividing 1470 by 351, we get 4 with a remainder of 66.
Put 4 as the next digit of the answer. 
Result so far: 245459.8034
Subtracting 1404 from 1470 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 13:
351 can be fit into 660 1 times, resulting in a remainder of 309.
Write down 1 as next digit of the result. 
Result so far: 245459.80341
If we take 351 away from 660, we end up with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Advancing to step 14:
When dividing 3090 by 351, we get 8 with a remainder of 282.
The number 8 becomes the next digit in our result. 
Result so far: 245459.803418
If we subtract 2808 from 3090, we get 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Going ahead to step 15:
The number 351 fits into 2820 8 times, leaving a remainder of 12.
Record the quotient 8 as the next digit in the result. 
Result so far: 245459.8034188
Subtracting 2808 from 2820 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 245459.8034188 and a remainder of 1.2e-07.