154211 ÷ 39 
Our goal is to divide 154211 by 39.

Going ahead to step 1:
When dividing 1 by 39, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 39

Advancing to step 2:
39 goes into 15 0 times with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Take the next digit (4) from the dividend and append it to 15, then repeat: 154 / 39

Let's proceed to step 3:
When dividing 154 by 39, we get 3 with a remainder of 37.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 117 from 154, we get 37.
Take the next digit (2) from the dividend and append it to 37, then repeat: 372 / 39

Going ahead to step 4:
39 can be fit into 372 9 times, resulting in a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 39.0
The remainder is 21 after subtracting 351 from 372.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 39

Moving on to step 5:
211 divided by 39 is 5 with a remainder of 16.
Write down 5 as next digit of the result. 
Result so far: 395.0
Deduct 195 from 211 and we're left with 16.
Append the next digit (1) from the dividend to 16 and continue with: 161 / 39

Advancing to step 6:
39 can be fit into 161 4 times, resulting in a remainder of 5.
Record the quotient 4 as the next digit in the result. 
Result so far: 3954.0
Subtract 156 from 161 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
When dividing 50 by 39, we get 1 with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 3954.1
Deduct 39 from 50 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 8:
39 goes into 110 2 times with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 3954.12
If we take 78 away from 110, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 9:
If we divide 320 by 39, we get 8 and a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 3954.128
If we take 312 away from 320, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
The number 39 fits into 80 2 times, leaving a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 3954.1282
If we take 78 away from 80, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 11:
When dividing 20 by 39, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 3954.1282
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 12:
39 can be fit into 200 5 times, resulting in a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 3954.128205
Deduct 195 from 200 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 13:
The number 39 fits into 50 1 times, leaving a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 3954.1282051
Subtracting 39 from 50 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 14:
39 goes into 110 2 times with a remainder of 32.
The next digit of our result is 2. 
Result so far: 3954.12820512
If we subtract 78 from 110, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 3954.12820512, with a leftover of 3.2e-08.