Let's divide 86905340 by 421
Let's see how many times 421 fits into 86905340.

Moving on to step 1:
When dividing 8 by 421, we get 0 with a remainder of 8.
Write down 0 as next digit of 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 / 421

Going ahead to step 2:
86 divided by 421 is 0 with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Append the next digit (9) from the dividend to 86 and continue with: 869 / 421

Going ahead to step 3:
If we divide 869 by 421, we get 2 and a remainder of 27.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 27 after subtracting 842 from 869.
Fetch the next digit (0) from the dividend, attach it to 27 and continue: 270 / 421

Let's proceed to step 4:
270 divided by 421 is 0 with a remainder of 270.
Use 0 as the next digit of our solution. 
Result so far: 20.0
The remainder is 270 after subtracting 0 from 270.
Include the next digit (5) from the dividend after 270, then repeat: 2705 / 421

On to step 5:
421 can be fit into 2705 6 times, resulting in a remainder of 179.
The number 6 becomes the next digit in our result. 
Result so far: 206.0
Subtract 2526 from 2705 to get 179.
Bring next digit (3) of the dividend behind the 179 and repeat the process: 1793 / 421

Let's proceed to step 6:
1793 divided by 421 is 4 with a remainder of 109.
Write down 4 as next digit of the result. 
Result so far: 2064.0
The remainder is 109 after subtracting 1684 from 1793.
Include the next digit (4) from the dividend after 109, then repeat: 1094 / 421

Let's proceed to step 7:
1094 divided by 421 is 2 with a remainder of 252.
Record the quotient 2 as the next digit in the result. 
Result so far: 20642.0
Deduct 842 from 1094 and we're left with 252.
Append the next digit (0) from the dividend to 252 and continue with: 2520 / 421

Step 8:
2520 divided by 421 is 5 with a remainder of 415.
The number 5 becomes the next digit in our result. 
Result so far: 206425.0
If we take 2105 away from 2520, we end up with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Moving on to step 9:
421 goes into 4150 9 times with a remainder of 361.
Put 9 as the next digit of the answer. 
Result so far: 206425.9
Deduct 3789 from 4150 and we're left with 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Moving on to step 10:
421 goes into 3610 8 times with a remainder of 242.
Write down 8 as next digit of the result. 
Result so far: 206425.98
Deduct 3368 from 3610 and we're left with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Step 11:
When dividing 2420 by 421, we get 5 with a remainder of 315.
The number 5 becomes the next digit in our result. 
Result so far: 206425.985
If we take 2105 away from 2420, we end up with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Moving on to step 12:
If we divide 3150 by 421, we get 7 and a remainder of 203.
The number 7 becomes the next digit in our result. 
Result so far: 206425.9857
If we subtract 2947 from 3150, we get 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

On to step 13:
2030 divided by 421 is 4 with a remainder of 346.
Put 4 as the next digit of the answer. 
Result so far: 206425.98574
If we subtract 1684 from 2030, we get 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Advancing to step 14:
421 can be fit into 3460 8 times, resulting in a remainder of 92.
Write down 8 as next digit of the result. 
Result so far: 206425.985748
Deduct 3368 from 3460 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 15:
920 divided by 421 is 2 with a remainder of 78.
Use 2 as the next digit of our solution. 
Result so far: 206425.9857482
Subtract 842 from 920 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 16:
421 goes into 780 1 times with a remainder of 359.
Record the quotient 1 as the next digit in the result. 
Result so far: 206425.98574821
Subtracting 421 from 780 leaves us with 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

The final result is 206425.98574821 with a remainder of 3.59e-07.