We look at the division of 86491612 by 405 
We want to figure out the number of times 86491612 can be divided by 405.

Moving on to step 1:
The number 405 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 405

Going ahead to step 2:
405 goes into 86 0 times with a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Bring next digit (4) of the dividend behind the 86 and repeat the process: 864 / 405

Advancing to step 3:
864 divided by 405 is 2 with a remainder of 54.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 54 after subtracting 810 from 864.
Take the next digit (9) from the dividend and append it to 54, then repeat: 549 / 405

On to step 4:
405 goes into 549 1 times with a remainder of 144.
The next digit of our result is 1. 
Result so far: 21.0
Subtracting 405 from 549 leaves us with 144.
Fetch the next digit (1) from the dividend, attach it to 144 and continue: 1441 / 405

Going ahead to step 5:
1441 divided by 405 is 3 with a remainder of 226.
Write down 3 as next digit of the result. 
Result so far: 213.0
If we take 1215 away from 1441, we end up with 226.
Include the next digit (6) from the dividend after 226, then repeat: 2266 / 405

Advancing to step 6:
When dividing 2266 by 405, we get 5 with a remainder of 241.
Put 5 as the next digit of the answer. 
Result so far: 2135.0
Subtracting 2025 from 2266 leaves us with 241.
Append the next digit (1) from the dividend to 241 and continue with: 2411 / 405

Moving on to step 7:
The number 405 fits into 2411 5 times, leaving a remainder of 386.
The number 5 becomes the next digit in our result. 
Result so far: 21355.0
The remainder is 386 after subtracting 2025 from 2411.
Fetch the next digit (2) from the dividend, attach it to 386 and continue: 3862 / 405

Step 8:
405 goes into 3862 9 times with a remainder of 217.
Put 9 as the next digit of the answer. 
Result so far: 213559.0
Deduct 3645 from 3862 and we're left with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

On to step 9:
The number 405 fits into 2170 5 times, leaving a remainder of 145.
Put 5 as the next digit of the answer. 
Result so far: 213559.5
If we take 2025 away from 2170, we end up with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Let's proceed to step 10:
1450 divided by 405 is 3 with a remainder of 235.
Use 3 as the next digit of our solution. 
Result so far: 213559.53
The remainder is 235 after subtracting 1215 from 1450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Going ahead to step 11:
405 can be fit into 2350 5 times, resulting in a remainder of 325.
The number 5 becomes the next digit in our result. 
Result so far: 213559.535
Subtracting 2025 from 2350 leaves us with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

On to step 12:
The number 405 fits into 3250 8 times, leaving a remainder of 10.
The next digit of our result is 8. 
Result so far: 213559.5358
Subtract 3240 from 3250 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
When dividing 100 by 405, we get 0 with a remainder of 100.
The next digit of our result is 0. 
Result so far: 213559.5358
If we take 0 away from 100, 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.

Advancing to step 14:
If we divide 1000 by 405, we get 2 and a remainder of 190.
Put 2 as the next digit of the answer. 
Result so far: 213559.535802
Deduct 810 from 1000 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 15:
If we divide 1900 by 405, we get 4 and a remainder of 280.
Use 4 as the next digit of our solution. 
Result so far: 213559.5358024
Subtracting 1620 from 1900 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 16:
405 can be fit into 2800 6 times, resulting in a remainder of 370.
Use 6 as the next digit of our solution. 
Result so far: 213559.53580246
If we subtract 2430 from 2800, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

The quotient of the division is 213559.53580246, and the remainder is 3.7e-07.