86421916 ÷ 106 
We're looking to find how many times 106 goes into 86421916.

On to step 1:
106 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 106

Let's proceed to step 2:
106 goes into 86 0 times with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Take the next digit (4) from the dividend and append it to 86, then repeat: 864 / 106

On to step 3:
The number 106 fits into 864 8 times, leaving a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 848 from 864 leaves us with 16.
Take the next digit (2) from the dividend and append it to 16, then repeat: 162 / 106

Let's proceed to step 4:
162 divided by 106 is 1 with a remainder of 56.
Write down 1 as next digit of the result. 
Result so far: 81.0
Subtracting 106 from 162 leaves us with 56.
Take the next digit (1) from the dividend and append it to 56, then repeat: 561 / 106

Going ahead to step 5:
The number 106 fits into 561 5 times, leaving a remainder of 31.
Put 5 as the next digit of the answer. 
Result so far: 815.0
Subtracting 530 from 561 leaves us with 31.
Bring next digit (9) of the dividend behind the 31 and repeat the process: 319 / 106

Moving on to step 6:
When dividing 319 by 106, we get 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 8153.0
Deduct 318 from 319 and we're left with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 106

Advancing to step 7:
106 goes into 11 0 times with a remainder of 11.
Write down 0 as next digit of the result. 
Result so far: 81530.0
Subtracting 0 from 11 leaves us with 11.
Grab the next digit (6) from the dividend, add it to 11, then carry on: 116 / 106

Let's proceed to step 8:
If we divide 116 by 106, we get 1 and a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 815301.0
Subtracting 106 from 116 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
If we divide 100 by 106, we get 0 and a remainder of 100.
Write down 0 as next digit of the result. 
Result so far: 815301.0
Subtract 0 from 100 to get 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 10:
If we divide 1000 by 106, we get 9 and a remainder of 46.
Record the quotient 9 as the next digit in the result. 
Result so far: 815301.09
If we subtract 954 from 1000, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 11:
If we divide 460 by 106, we get 4 and a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 815301.094
Deduct 424 from 460 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 12:
106 goes into 360 3 times with a remainder of 42.
The next digit of our result is 3. 
Result so far: 815301.0943
Subtracting 318 from 360 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 13:
If we divide 420 by 106, we get 3 and a remainder of 102.
Put 3 as the next digit of the answer. 
Result so far: 815301.09433
If we take 318 away from 420, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

The final outcome is 815301.09433, with a leftover of 0.000102.