We're dividing 86101421 by 154 
Let's see how many times 154 fits into 86101421.

On to step 1:
If we divide 8 by 154, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 154

Let's proceed to step 2:
If we divide 86 by 154, we get 0 and a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Bring next digit (1) of the dividend behind the 86 and repeat the process: 861 / 154

Advancing to step 3:
154 can be fit into 861 5 times, resulting in a remainder of 91.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we subtract 770 from 861, we get 91.
Bring next digit (0) of the dividend behind the 91 and repeat the process: 910 / 154

Step 4:
If we divide 910 by 154, we get 5 and a remainder of 140.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
Deduct 770 from 910 and we're left with 140.
Bring next digit (1) of the dividend behind the 140 and repeat the process: 1401 / 154

On to step 5:
If we divide 1401 by 154, we get 9 and a remainder of 15.
Record the quotient 9 as the next digit in the result. 
Result so far: 559.0
The remainder is 15 after subtracting 1386 from 1401.
Append the next digit (4) from the dividend to 15 and continue with: 154 / 154

Moving on to step 6:
154 goes into 154 1 times with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 5591.0
Deduct 154 from 154 and we're left with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 154

Going ahead to step 7:
154 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 55910.0
Subtract 0 from 2 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 154

Step 8:
154 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 559100.0
If we take 0 away from 21, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 9:
When dividing 210 by 154, we get 1 with a remainder of 56.
Use 1 as the next digit of our solution. 
Result so far: 559100.1
If we take 154 away from 210, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 10:
154 goes into 560 3 times with a remainder of 98.
Record the quotient 3 as the next digit in the result. 
Result so far: 559100.13
If we subtract 462 from 560, we get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Going ahead to step 11:
If we divide 980 by 154, we get 6 and a remainder of 56.
Record the quotient 6 as the next digit in the result. 
Result so far: 559100.136
Subtracting 924 from 980 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 12:
If we divide 560 by 154, we get 3 and a remainder of 98.
The number 3 becomes the next digit in our result. 
Result so far: 559100.1363
Subtract 462 from 560 to get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Let's proceed to step 13:
The number 154 fits into 980 6 times, leaving a remainder of 56.
Use 6 as the next digit of our solution. 
Result so far: 559100.13636
If we subtract 924 from 980, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 14:
154 can be fit into 560 3 times, resulting in a remainder of 98.
Use 3 as the next digit of our solution. 
Result so far: 559100.136363
If we subtract 462 from 560, we get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Moving on to step 15:
When dividing 980 by 154, we get 6 with a remainder of 56.
The number 6 becomes the next digit in our result. 
Result so far: 559100.1363636
Subtract 924 from 980 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 16:
If we divide 560 by 154, we get 3 and a remainder of 98.
Write down 3 as next digit of the result. 
Result so far: 559100.13636363
Deduct 462 from 560 and we're left with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

The quotient of the division is 559100.13636363, and the remainder is 9.8e-08.