21538786 ÷ 374 
We're looking to find how many times 374 goes into 21538786.

Going ahead to step 1:
When dividing 2 by 374, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 374

Advancing to step 2:
The number 374 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 374

Advancing to step 3:
When dividing 215 by 374, we get 0 with a remainder of 215.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 215 to get 215.
Bring next digit (3) of the dividend behind the 215 and repeat the process: 2153 / 374

Moving on to step 4:
374 can be fit into 2153 5 times, resulting in a remainder of 283.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 283 after subtracting 1870 from 2153.
Include the next digit (8) from the dividend after 283, then repeat: 2838 / 374

Advancing to step 5:
374 goes into 2838 7 times with a remainder of 220.
Use 7 as the next digit of our solution. 
Result so far: 57.0
The remainder is 220 after subtracting 2618 from 2838.
Grab the next digit (7) from the dividend, add it to 220, then carry on: 2207 / 374

Advancing to step 6:
2207 divided by 374 is 5 with a remainder of 337.
The number 5 becomes the next digit in our result. 
Result so far: 575.0
Subtracting 1870 from 2207 leaves us with 337.
Bring next digit (8) of the dividend behind the 337 and repeat the process: 3378 / 374

On to step 7:
If we divide 3378 by 374, we get 9 and a remainder of 12.
The number 9 becomes the next digit in our result. 
Result so far: 5759.0
The remainder is 12 after subtracting 3366 from 3378.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 374

Advancing to step 8:
126 divided by 374 is 0 with a remainder of 126.
The next digit of our result is 0. 
Result so far: 57590.0
If we take 0 away from 126, we end up with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Let's proceed to step 9:
The number 374 fits into 1260 3 times, leaving a remainder of 138.
Write down 3 as next digit of the result. 
Result so far: 57590.3
If we take 1122 away from 1260, we end up with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

On to step 10:
374 goes into 1380 3 times with a remainder of 258.
Use 3 as the next digit of our solution. 
Result so far: 57590.33
Subtracting 1122 from 1380 leaves us with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

The final outcome is 57590.33, with a leftover of 0.258.